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Full vulnerability report · 2025
CVE-2025-64446High confidence

Fortinet FortiWeb Path Traversal Vulnerability

Fortinet · FortiWeb

Official source article: Fortinet FG-IR-25-910 ↗. Check the applicable product and release in the original source.

9.4CriticalCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2025-11-21 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

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

Evidence used

  • CISA confirms exploitation in the wild.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 91.84% 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.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Fortinet FortiWeb 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.

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-2025-197613

CISA KEV mirrored by ENISA

A relative path traversal vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 14 Nov 2025. Evidence sources: cisa_kev.
ENISA score
9.4 · CVSS 3.1
Advisory evidence
2 linked advisory records
Explicit mitigation evidence

Only statements that explicitly mention a fix, patch, update, workaround or mitigation are shown here.

  • csaf_ncscnl · NCSC-2025-0366Kwetsbaarheid verholpen in Fortinet FortiWeb
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2025-11-21 as the remediation due date.

Patch available
01

What, why and how

Fortinet FortiWeb contains a relative path traversal vulnerability that may allow an unauthenticated attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

What

Fortinet FortiWeb contains a relative path traversal vulnerability that may allow an unauthenticated attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

Why

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as .. that can resolve to a location that is outside of that directory.

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

Fortinet FortiWeb contains a relative path traversal vulnerability that may allow an unauthenticated attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

Why

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as .. that can resolve to a location that is outside of that directory.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2025-11-14.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Relative Path Traversal → 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
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-23 ↗

CWE-23: Relative Path Traversal. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as .. that can resolve to a location that is outside of that directory.

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:U/C:H/I:H/A:H/E:H/RL:O/RC:C

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.SUnchangedScope: The security impact remains within the vulnerable component's 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-23CISA KEVPublic exploit reference
A

Official authority intelligence

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

ENISA EUVD · EUVD-2025-197613Known-exploited evidence recorded

A relative path traversal vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

Official EUVD record ↗
BSI · German · WID-SEC-2025-2603Fortinet FortiWeb: Schwachstelle ermöglicht Erlangen von Administratorrechten

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Fortinet FortiWeb ausnutzen, um Administratorrechte zu erlangen.

Official advisory ↗
Canadian Centre for Cyber Security · English · AV25-758Fortinet security advisory (AV25-758)

On November 14, 2025, Fortinet published a security advisory to address a critical vulnerability in the following products: Fortinet is aware that an exploit for CVE-2025-64446 exists and is currently being exploited in the wild.

Official advisory ↗
Canadian Centre for Cyber Security · English · AL25-017AL25-017 - Vulnerability impacting Fortinet FortiWeb – CVE-2025-64446

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-20251119Security Bulletin 19 Nov 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Nov 2025, published on 19 November 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1014Vulnérabilité dans Fortinet FortiWeb

Une vulnérabilité a été découverte dans Fortinet FortiWeb. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité. Fortinet indique que la vulnérabilité CVE-2025-64446 est activement exploitée.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-019406フォーティネットの Fortiweb における相対パストラバーサルの脆弱性

フォーティネットの Fortiweb には、相対パストラバーサルの脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6625Fortinet 제품 보안 업데이트 권고

Fortinet의 FortiWeb에서 발생하는 경로 탐색 취약점(CVE-2025-64446) [2][4]

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6622美 CISA 발표 주요 Exploit 정보공유(Update. 2025-11-14)

Fortinet FortiWeb contains a relative path traversal vulnerability that may allow an unauthenticated attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

Official advisory ↗
NCSC-NL · Dutch · NCSC-2025-0366Kwetsbaarheid verholpen in Fortinet FortiWeb

Fortinet heeft een kwetsbaarheid verholpen in FortiWeb. De kwetsbaarheid met het kenmerk CVE-2025-64446 betreft een relative path traversal-kwetsbaarheid en stelt een niet-geauthenticeerde aanvaller op afstand in staat om administratieve commando’s uit te voeren via speciaal vervaardigde HTTP-verzoeken. Het NCSC heeft informatie ontvangen dat de kwetsbaarheid al enige tijd actief wordt misbruikt. Tevens hebben onderzoekers Proof-of-Concept-code (PoC) gepubliceerd waarmee de kwetsbaarheid kan worden aangetoond. Het is daarom de verwachting dat het aantal pogingen tot misbruik verder zal toenemen.

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.
Patch available
Affected
FortiWeb: 7.4.0 ≤ 7.4.9, 7.2.0 ≤ 7.2.11, 7.6.0 ≤ 7.6.4, 8.0.0 ≤ 8.0.1, 7.0.0 ≤ 7.0.11
Fixed
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
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.
04

Evidence and provenance

Published 14 Nov 2025 · Last source change 26 Feb 2026, 16:56 UTC · CWE-23 · Relative Path Traversal

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 2026-08-14
European sourceENISA EUVD · EUVD-2025-197613
Product sourceCNA
Remediation sourceCVE/CNA references
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 remediation: fortiguard.fortinet.com/FG-IR-25-910.
    Before
    vendor advisory: fortiguard.fortinet.com/FG-IR-25-910
    After
    remediation: fortiguard.fortinet.com/FG-IR-25-910 · vendor advisory: fortiguard.fortinet.com/FG-IR-25-910
    psirt@fortinet.com ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    8.0.0 ≤ 8.0.1; 7.6.0 ≤ 7.6.4; 7.4.0 ≤ 7.4.9; 7.2.0 ≤ 7.2.11; 7.0.0 ≤ 7.0.11 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    FortiWeb: 8.0.0 ≤ 8.0.1, 7.6.0 ≤ 7.6.4, 7.4.0 ≤ 7.4.9, 7.2.0 ≤ 7.2.11, 7.0.0 ≤ 7.0.11 · Fixed: Upgrade to FortiWeb version 8.0.2 or above; Upgrade to FortiWeb version 7.6.5 or above; Upgrade to FortiWeb version 7.4.10 or above; Upgrade to FortiWeb version 7.2.12 or above; Upgrade to FortiWeb version 7.0.12 or above
    CNA ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    psirt@fortinet.com ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2025-197613↗CISA KEV record↗CVE authority or vendor reference · Fortinet FG-IR-25-910↗Public exploit reference↗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-2025-64446 · cve.blacktree.nl