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Full vulnerability report · 2026
CVE-2026-20192High confidence

Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities

Cisco · Cisco Identity Services Engine Software

Official source article: Cisco CISCO-SA-HARDENING-ISE-XU5EWX5T ↗. Check the applicable product and release in the original source.

10.0CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 246 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.46% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Cisco Cisco Identity Services Engine Software and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 246 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
cisco-sa-hardening-ise-XU5EwX5T · CSAF 2.0 · revision 1.0.0 · finalCisco PSIRTCisco Identity Services Engine Hardening Release - Access Control Vulnerabilities
246 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Cisco Identity Services Engine Software
  • 1.1.0
  • 1.2.0
  • 1.1.1.268 Patch1
  • 1.1.1.268 Patch2
  • 1.1.1.268 Patch3
  • 1.1.1.268 Patch4
  • 1.1.1.268 Patch5
  • 1.1.1.268 Patch6
  • 1.1.2.145 Patch1
  • 1.1.2.145 Patch2
  • 1.1.2.145 Patch3
Summary
Complete.
Remediation
Cisco has released software updates that address this vulnerability.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-81104

No EUVD known-exploited evidence

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
10.0 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 246 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

What

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Access Control → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-284 ↗

CWE-284: Improper Access Control. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-284
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-81104Official EUVD mapping

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3425Cisco ISE und ISE-PIC: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Cisco Identity Services Engine (ISE) und ISE-PIC ausnutzen, um beliebigen Code auszuführen – sogar mit Root-Rechten –, Sicherheitsmaßnahmen zu umgehen, Berechtigungen zu erweitern, SQL-Injection-Angriffe durchzuführen, Sitzungen zu übernehmen, sensible Informationen oder Anmeldedaten offenzulegen, Daten zu manipulieren, einen Denial-of-Service-Zustand auszulösen und Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
Canadian Centre for Cyber Security · English · AL26-021AL26-021 - Vulnerabilities Impacting Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) - CVE-2026-20192, CVE-2026-76423 and CVE-2026-76460

An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients. The Canadian Centre for Cyber Security ("Cyber Centre") is also available to provide additional assistance regarding the content of this Alert to recipients as requested.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260923Security Bulletin 23 Sep 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 23 Sep 2026, published on 23 September 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
INCIBE-CERT · Spanish · multiples-vulnerabilidades-en-productos-de-cisco-15Múltiples vulnerabilidades en productos de Cisco

are: 9.16 y anteriores: 9.16.4.103; 9.18: 9.18.4.94; 9.20: 9.20.4.49; 9.22: 9.22.3.26; 9.23: 9.23.1.47; 9.24: 9.24.1.26. Cisco Secure FTD Software y Secure FMC Software: 7.0 y anteriores: 7.0.10; 7.2: 7.2.12; 7.4: 7.4.8; 7.6: 7.6.6; 7.7: 7.7.13; 10.0: 10.0.2; 10.1: 10.1.0. Cisco Nexus Dashboard: 4.2 y anteriores: migrar a una versión corregida; 4.3: 4.3.1.175. Para BroadWorks CommPilot Application Software y ThousandEyes Virtual Appliance, así como para configuraciones concretas no cubiertas por las versiones anteriores, se recomienda consultar el aviso correspondiente y utilizar la herramienta Cisco Software Checker. Detalle CVE-2026-20130, CVE-2026-20192, CVE-2026-20194, CVE-2026-20234, CVE-2026-20237 y CVE-2026-20287 : agrupan vulnerabilidades detectadas durante una revisión interna de seguridad de Cisco ISE e ISE-PIC. Están relacionadas con la neutralización inadecuada de elementos especiales, controles de acceso incorrectos, transferencia de recursos entre ámbitos, protección insuficiente de credenciales, validación incorrecta de entradas y gestión inadecuada de privilegios. CVE-2026-76423, CVE-2026-76424, CVE-2026-76425, CVE-2026-76426, CVE-2026-76427 y CVE-2026-76428 : vulnerabilidades en Cisco ISE e ISE-PIC que podrían permitir omitir la autenticación de la API REST, obtener acceso adm

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1197Multiples vulnérabilités dans les produits Cisco

urityAdvisory/cisco-sa-ise-rce-se7bYU57 Bulletin de sécurité Cisco cisco-sa-ise-sql-inj-3QTKR947 du 16 septembre 2026 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sql-inj-3QTKR947 Support ISE Cisco https://www.cisco.com/c/en/us/support/security/identity-services-engine/series.html Référence CVE CVE-2026-20130 https://www.cve.org/CVERecord?id=CVE-2026-20130 Référence CVE CVE-2026-20135 https://www.cve.org/CVERecord?id=CVE-2026-20135 Référence CVE CVE-2026-20154 https://www.cve.org/CVERecord?id=CVE-2026-20154 Référence CVE CVE-2026-20176 https://www.cve.org/CVERecord?id=CVE-2026-20176 Référence CVE CVE-2026-20192 https://www.cve.org/CVERecord?id=CVE-2026-20192 Référence CVE CVE-2026-20194 https://www.cve.org/CVERecord?id=CVE-2026-20194 Référence CVE CVE-2026-20211 https://www.cve.org/CVERecord?id=CVE-2026-20211 Référence CVE CVE-2026-20222 https://www.cve.org/CVERecord?id=CVE-2026-20222 Référence CVE CVE-2026-20234 https://www.cve.org/CVERecord?id=CVE-2026-20234 Référence CVE CVE-2026-20237 https://www.cve.org/CVERecord?id=CVE-2026-20237 Référence CVE CVE-2026-20242 https://www.cve.org/CVERecord?id=CVE-2026-20242 Référence CVE CVE-2026-20247 https://www.cve.org/CVERecord?id=CVE-2026-20247 Référence CVE CVE-2026-20249 https://www.cve.org/CVERecord?id=

Official advisory ↗
CSIRT Italia · Italian · risolte-vulnerabilita-in-prodotti-cisco-32Risolte vulnerabilità in prodotti Cisco

nuova finestra - - CVE-2026-20306 : apre una nuova finestra - - CVE-2026-20305 : apre una nuova finestra - - CVE-2026-20300 : apre una nuova finestra - - CVE-2026-20295 : apre una nuova finestra - - CVE-2026-20284 : apre una nuova finestra - - CVE-2026-20250 : apre una nuova finestra - - CVE-2026-20249 : apre una nuova finestra - - CVE-2026-20247 : apre una nuova finestra - - CVE-2026-20242 : apre una nuova finestra - - CVE-2026-20237 : apre una nuova finestra - - CVE-2026-20234 : apre una nuova finestra - - CVE-2026-20222 : apre una nuova finestra - - CVE-2026-20211 : apre una nuova finestra - - CVE-2026-20194 : apre una nuova finestra - - CVE-2026-20192 : apre una nuova finestra - - CVE-2026-20176 : apre una nuova finestra - - CVE-2026-20154 : apre una nuova finestra - - CVE-2026-20135 : apre una nuova finestra - - CVE-2026-20130 : apre una nuova finestra - - Riferimenti (20) https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ndw1

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-035969シスコシステムズのCisco Identity Services Engine (ISE)等の複数製品におけるアクセス制御に関する脆弱性

Ciscoの継続的なセキュリティおよび製品品質への取り組みの一環として、Cisco Identity Services Engine（ISE）およびCisco ISE Passive Identity Connector（ISE-PIC）のエンジニアリングチームは包括的な社内セキュリティレビューを実施しました。このレビューの結果、複数の内部で発見された脆弱性に対処するためのソフトウェア強化リリースが行われました。CVE-2026-20192で追跡されている脆弱性は、不適切なアクセス制御の問題に関連しており、共通弱点列挙（CWE）の柱であるCWE-284に分類されています。

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0382Kwetsbaarheden verholpen in Cisco Identity Services Engine (ISE)

De kwetsbaarheden betreffen verschillende beveiligingsproblemen in Cisco ISE en ISE-PIC, waaronder mogelijkheden voor niet-geauthenticeerde en laaggeprivilegieerde kwaadwillenden om via netwerktoegang ongeautoriseerde acties uit te voeren. De kwetsbaarheden hebben CVSS-scores variërend van middel tot kritiek. Van de in totaal 21 kwetsbaarheden zijn 13 als kritiek aangemerkt. Op basis van de door Cisco gepubliceerde CVSS-scores kunnen vier kwetsbaarheden zonder authenticatie op afstand worden misbruikt. Succesvol misbruik kan onder meer leiden tot het omzeilen van authenticatie- en autorisatiecontroles, het verkrijgen en wijzigen van gevoelige configuratie- en identiteitsgegevens, het uitvoeren van willekeurige code of commando's met rootrechten, SQL-injectie, het uitlezen van bestanden en het verstoren van de beschikbaarheid van getroffen systemen. Sommige kwetsbaarheden vereisen voorafgaande administratieve toegangsrechten of een specifieke configuratie, terwijl andere volledig op afstand en zonder authenticatie kunnen worden misbruikt. Van de 13 kwetsbaarheden die als kritiek zijn aangemerkt, hebben meerdere een CVSS-score van 9,8 of hoger. Vier kwetsbaarheden, CVE-2026-20130, CVE-2026-20192, CVE-2026-76423 en CVE-2026-76460, hebben een CVSS-score van 10,0. De kwetsbaarheid met kenmerk CVE-2026-76423 betreft een kwetsbaarheid in de REST API waarmee een niet-geauthenticeerde kwaadwillende administratieve toegang kan verkrijgen tot Cisco ISE en ISE-PIC. De kwetsbaarheid met kenmerk CVE-2026-76460 betreft een authenticatieomzeiling in een API van Cisco ISE en ISE-PIC waarmee een niet-geauthenticeerde kwaadwillende toegang tot het getroffen systeem kan verkrijgen. Cisco meldt dat deze kwetsbaarheid actief wordt misbruikt. Na succesvolle exploitatie kunnen kwaadwillenden volgens Cisco commando's met rootrechten uitvoeren. De kwetsbaarheden met kenmerk CVE-2026-20130 en CVE-2026-20192 betreffen door Cisco gegroepeerde kwetsbaarheden op het gebied van respectievelijk onvoldoende neutralisatie van invoer en onjuiste toegangscontrole. Cisco heeft voor deze hardening-release meerdere onderliggende kwetsbaarheden per CWE-klasse onder één CVE-ID samengebracht. De CVSS-score vertegenwoordigt daarbij de hoogst scorende onderliggende kwetsbaarheid. Het NCSC adviseert om de beveiligingsupdates voor de kritieke kwetsbaarheden met voorrang toe te passen.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
Official vendor articles1 stored document

Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.

  • Cisco Identity Services Engine Hardening Release: September 2026 →Original publisher ↗Searchable text snapshot · Captured 28 Sep 2026Home / Cisco Security / Security Advisories Cisco Security Advisory Cisco Identity Services Engine Hardening Release: September 2026 Cisco Identity Services Engine Hardening Release: September 2026 --> Cisco Security Advisory Cisco Identity Services Engine Hardening Release: September 2026 Critical Advisory ID: ci
04

Evidence and provenance

Published 16 Sept 2026 · Last source change 18 Sept 2026, 13:41 UTC · CWE-284 · Improper Access Control

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-17
European sourceENISA EUVD · EUVD-2026-81104
Product sourceVendor CSAF · Cisco PSIRT
Remediation sourceVendor CSAF · Cisco PSIRT
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T; removed patch: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T; removed remediation: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T.
    Before
    patch: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T · remediation: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T
    After
    vendor advisory: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T
    psirt@cisco.com ↗
  2. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    psirt@cisco.com ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T; removed remediation: cyber.gc.ca/al26-021-vulnerabilities-impacting-cisco-identity-services-engine-ise-cisco-ise-passive-identity-connector-ise-pic-cve-2026-20192-cve-2026-76423-cve-2026-76460.
    Before
    remediation: cyber.gc.ca/al26-021-vulnerabilities-impacting-cisco-identity-services-engine-ise-cisco-ise-passive-identity-connector-ise-pic-cve-2026-20192-cve-2026-76423-cve-2026-76460
    After
    vendor advisory: sec.cloudapps.cisco.com/cisco-sa-hardening-ise-XU5EwX5T
    psirt@cisco.com ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    Cisco Identity Services Engine Software: 3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p2, 3.2.0, 3.1.0 p4, 3.1.0 p5, 3.2.0 p1, 3.1.0 p6, 3.2.0 p2, 3.1.0 p7, 3.3.0, 3.2.0 p3, 3.2.0 p4, 3.1.0 p8, 3.2.0 p5, 3.2.0 p6, 3.1.0 p9, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.2.0 p7, 3.3 Patch 4, 3.4 Patch 1, 3.1.0 p10, 3.3 Patch 5, 3.3 Patch 6, 3.4 Patch 2, 3.3 Patch 7, 3.4 Patch 3, 3.5.0, 3.4 Patch 4, 3.3 Patch 8, 3.2 Patch 8, 3.5 Patch 1, 3.3 Patch 9, 3.2 Patch 9, 3.4 Patch 5, 3.5 Patch 3, 3.5 Patch 2, 3.3 Patch 10, 3.3 Patch 11, 3.4 Patch 6, 3.2 Patch 10, 3.1.0 p72, 3.1.0 p11; Cisco ISE Passive Identity Connector: 3.2.0, 3.1.0, 3.3.0, 3.4.0, 3.5.0 · Fixed: The Cyber Centre strongly recommends that organizations running Cisco ISE and ISE-PIC upgrade to the vendor-supported fixed software versions identified below. Affected product Affected releases Fixed releases Cisco Identity Services Engine (ISE) or ISE-PIC releases prior to 3.0 Migrate to a fixed release Cisco Identity Services Engine (ISE) or ISE-PIC release 3.1 3.1 Patch 12 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.2 3.2 Patch 11 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.3 3.3 Patch 12 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.4 3.4 Patch 7 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.5 3.5 Patch 4 The Cyber Centre also recommends organizations to: Apply vendor-provided security updates immediately. Cisco has released fixes for all three vulnerabilities. Prioritize remediation of CVE-2026-76460 due to confirmed in-the-wild exploitation. Review access logs for indicators of compromise (IoC), particularly suspicious usernames and unexpected API activity. Restrict access to management interfaces through access control lists (ACL), network segmentation, and trusted administration networks where feasible. If compromise is suspected, re-image affected nodes and restore from known-good backups, as attackers may obtain elevated privileges and remove evidence of exploitation. Monitor firewall, network, and authentication logs for anomalous activity associated with affected systems. Note: Organizations operating Common Criteria Footnote 10 evaluated configurations should review Cisco's advisory and apply the recommended updates in accordance with their change management and certification requirements. In addition, the Cyber Centre strongly recommends that organizations review and implement the Cyber Centre's Top 10 IT Security Actions Footnote 11 with an emphasis on the following topics: Consolidating, monitoring, and defending Internet gateways Patch operating systems and applications Harden operating systems and applications Isolate web-facing applications Should activity matching the content of this alert be discovered, recipients are encouraged to report via My Cyber Portal , or email contact@cyber.gc.ca .
    After
    Cisco Identity Services Engine Software: 3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p2, 3.2.0, 3.1.0 p4, 3.1.0 p5, 3.2.0 p1, 3.1.0 p6, 3.2.0 p2, 3.1.0 p7, 3.3.0, 3.2.0 p3, 3.2.0 p4, 3.1.0 p8, 3.2.0 p5, 3.2.0 p6, 3.1.0 p9, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.2.0 p7, 3.3 Patch 4, 3.4 Patch 1, 3.1.0 p10, 3.3 Patch 5, 3.3 Patch 6, 3.4 Patch 2, 3.3 Patch 7, 3.4 Patch 3, 3.5.0, 3.4 Patch 4, 3.3 Patch 8, 3.2 Patch 8, 3.5 Patch 1, 3.3 Patch 9, 3.2 Patch 9, 3.4 Patch 5, 3.5 Patch 3, 3.5 Patch 2, 3.3 Patch 10, 3.3 Patch 11, 3.4 Patch 6, 3.2 Patch 10, 3.1.0 p72, 3.1.0 p11; Cisco ISE Passive Identity Connector: 3.2.0, 3.1.0, 3.3.0, 3.4.0, 3.5.0 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  5. Remediation statusRemediation status changed from Patch available to Awaiting fix.
    Before
    Patch available
    After
    Awaiting fix
    psirt@cisco.com ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    Cisco Identity Services Engine Software: 3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p2, 3.2.0, 3.1.0 p4, 3.1.0 p5, 3.2.0 p1, 3.1.0 p6, 3.2.0 p2, 3.1.0 p7, 3.3.0, 3.2.0 p3, 3.2.0 p4, 3.1.0 p8, 3.2.0 p5, 3.2.0 p6, 3.1.0 p9, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.2.0 p7, 3.3 Patch 4, 3.4 Patch 1, 3.1.0 p10, 3.3 Patch 5, 3.3 Patch 6, 3.4 Patch 2, 3.3 Patch 7, 3.4 Patch 3, 3.5.0, 3.4 Patch 4, 3.3 Patch 8, 3.2 Patch 8, 3.5 Patch 1, 3.3 Patch 9, 3.2 Patch 9, 3.4 Patch 5, 3.5 Patch 3, 3.5 Patch 2, 3.3 Patch 10, 3.3 Patch 11, 3.4 Patch 6, 3.2 Patch 10, 3.1.0 p72, 3.1.0 p11; Cisco ISE Passive Identity Connector: 3.2.0, 3.1.0, 3.3.0, 3.4.0, 3.5.0 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Cisco Identity Services Engine Software: 3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p2, 3.2.0, 3.1.0 p4, 3.1.0 p5, 3.2.0 p1, 3.1.0 p6, 3.2.0 p2, 3.1.0 p7, 3.3.0, 3.2.0 p3, 3.2.0 p4, 3.1.0 p8, 3.2.0 p5, 3.2.0 p6, 3.1.0 p9, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.2.0 p7, 3.3 Patch 4, 3.4 Patch 1, 3.1.0 p10, 3.3 Patch 5, 3.3 Patch 6, 3.4 Patch 2, 3.3 Patch 7, 3.4 Patch 3, 3.5.0, 3.4 Patch 4, 3.3 Patch 8, 3.2 Patch 8, 3.5 Patch 1, 3.3 Patch 9, 3.2 Patch 9, 3.4 Patch 5, 3.5 Patch 3, 3.5 Patch 2, 3.3 Patch 10, 3.3 Patch 11, 3.4 Patch 6, 3.2 Patch 10, 3.1.0 p72, 3.1.0 p11; Cisco ISE Passive Identity Connector: 3.2.0, 3.1.0, 3.3.0, 3.4.0, 3.5.0 · Fixed: The Cyber Centre strongly recommends that organizations running Cisco ISE and ISE-PIC upgrade to the vendor-supported fixed software versions identified below. Affected product Affected releases Fixed releases Cisco Identity Services Engine (ISE) or ISE-PIC releases prior to 3.0 Migrate to a fixed release Cisco Identity Services Engine (ISE) or ISE-PIC release 3.1 3.1 Patch 12 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.2 3.2 Patch 11 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.3 3.3 Patch 12 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.4 3.4 Patch 7 Cisco Identity Services Engine (ISE) or ISE-PIC release 3.5 3.5 Patch 4 The Cyber Centre also recommends organizations to: Apply vendor-provided security updates immediately. Cisco has released fixes for all three vulnerabilities. Prioritize remediation of CVE-2026-76460 due to confirmed in-the-wild exploitation. Review access logs for indicators of compromise (IoC), particularly suspicious usernames and unexpected API activity. Restrict access to management interfaces through access control lists (ACL), network segmentation, and trusted administration networks where feasible. If compromise is suspected, re-image affected nodes and restore from known-good backups, as attackers may obtain elevated privileges and remove evidence of exploitation. Monitor firewall, network, and authentication logs for anomalous activity associated with affected systems. Note: Organizations operating Common Criteria Footnote 10 evaluated configurations should review Cisco's advisory and apply the recommended updates in accordance with their change management and certification requirements. In addition, the Cyber Centre strongly recommends that organizations review and implement the Cyber Centre's Top 10 IT Security Actions Footnote 11 with an emphasis on the following topics: Consolidating, monitoring, and defending Internet gateways Patch operating systems and applications Harden operating systems and applications Isolate web-facing applications Should activity matching the content of this alert be discovered, recipients are encouraged to report via My Cyber Portal , or email contact@cyber.gc.ca .
    Canadian Centre for Cyber Security ↗
  7. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Canadian Centre for Cyber Security ↗
  8. BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
    Before
    no BlackTree article
    After
    1 BlackTree article
    BlackTree editorial ↗
  9. ENISA EUVD mappingEUVD-2026-81104 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-81104"}
    ENISA EUVD ↗
  10. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
  11. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Cisco PSIRT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2026-81104↗CVE authority or vendor reference · Cisco CISCO-SA-HARDENING-ISE-XU5EWX5T↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-20192 · cve.blacktree.nl