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Full vulnerability report · 2022
CVE-2020-25178High confidence

Rockwell Automation ISaGRAF5 Runtime Cleartext Transmission of Sensitive Information

Rockwell Automation · ISaGRAF Runtime

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
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
SEVD-2021-159-04 · CSAF 2.0 · revision 8.0.0 · finalSchneider Electric CPCERTISaGRAF Vulnerabilities in IEC 61131-3 Programming and Engineering Tools
13 known affected

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

  • Schneider Electric Easergy T300 <2.8.2
  • Schneider Electric PACiS GTW <5.2
  • Schneider Electric Saitel DP <=11.06.21
  • Schneider Electric Saitel DR <=11.06.12
  • Schneider Electric Talus T4e RTU <A18
  • Schneider Electric Talus T4c RTU <A19.08
  • Schneider Electric SCADAPack E <8.18.1
  • Schneider Electric SCADAPack Workbench <6.6.8
  • Schneider Electric SAGE RTU - C3414 CPU <C3414-500-S02K5_P5
  • Schneider Electric SAGE RTU - C3413 CPU C3412 CPU All Firmware Versions
  • Schneider Electric SCD2200 <=10024
  • Rockwell Automation ISaGRAF Runtime Versions 5.2 and prior default component of Schneider Electric Easergy C5 Versions up to 1.0.x
Summary
ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.
Remediation
Customers should upgrade to the firmware V9.1.0 or later (14942), which incorporates ISaGRAF Workbench V6.6.9. Notification of firmware release can be found here: https://secommunities.force.com/PAkb/s/article/CCN000244525 A reboot is required when upgrading to new firmware. No user actions are required to apply the remediation beyond upgrading the firmware in the RTU.
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2020-17869

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.

What

ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

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

What

ISaGRAF Workbench communicates with Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x using TCP/IP. This communication protocol provides various file system operations, as well as the uploading of applications. Data is transferred over this protocol unencrypted, which could allow a remote unauthenticated attacker to upload, read, and delete files.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

An attacker operating through a network path may attempt exploitation without authentication after a 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 → Cleartext Transmission of Sensitive Information → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
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-319 ↗

CWE-319: Cleartext Transmission of Sensitive Information. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

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:H/PR:N/UI:R/S:U/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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.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-319
A

Official authority intelligence

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

Cyber Security Agency of Singapore · English · CSA-SB-20220323Security Bulletin 23 Mar 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 23 Mar 2022, published on 23 March 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0013Multiples vulnérabilités dans les produits Schneider Electric

De multiples vulnérabilités ont été découvertes dans les produits Schneider Electric. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-911Multiples vulnérabilités dans Moxa ioPAC

De multiples vulnérabilités ont été découvertes dans Moxa ioPAC. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-443Multiples vulnérabilités dans les produits Schneider Electric

eider Electric SEVD-2021-159-03 du 08 juin 2021 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03 Bulletin de sécurité Schneider Electric SEVD-2021-159-04 du 08 juin 2021 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-04 Bulletin de sécurité Schneider Electric SEVD-2021-159-05 du 08 juin 2021 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-05 Bulletin de sécurité Schneider Electric SEVD-2021-159-06 du 08 juin 2021 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-06 Référence CVE CVE-2020-25176 https://www.cve.org/CVERecord?id=CVE-2020-25176 Référence CVE CVE-2020-25178 https://www.cve.org/CVERecord?id=CVE-2020-25178 Référence CVE CVE-2020-25180 https://www.cve.org/CVERecord?id=CVE-2020-25180 Référence CVE CVE-2020-25182 https://www.cve.org/CVERecord?id=CVE-2020-25182 Référence CVE CVE-2020-25184 https://www.cve.org/CVERecord?id=CVE-2020-25184 Référence CVE CVE-2021-22749 https://www.cve.org/CVERecord?id=CVE-2021-22749 Référence CVE CVE-2021-22750 https://www.cve.org/CVERecord?id=CVE-2021-22750 Référence CVE CVE-2021-22751 https://www.cve.org/CVERecord?id=CVE-2021-22751 Référence CVE CVE-2021-22752 https://www.cve.org/CVERecord?id=CVE-2021-22752 Référence CVE CVE-2021-22753 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-001882Rockwell Automation 製 ISaGRAF5 Runtime に複数の脆弱性

Rockwell Automation 社が提供する ISaGRAF5 Runtime には、次の複数の脆弱性が存在します。 　* 相対的パストラバーサル (CWE-23) - CVE-2020-25176 　* 認証情報の平文保存 (CWE-256) - CVE-2020-25184 　* 重要な情報の平文での送信 (CWE-319) - CVE-2020-25178 　* DLL ファイルの検索パスが適切に制御されていない (CWE-427) - CVE-2020-25182 　* ハードコードされた暗号鍵の使用 (CWE-321) - CVE-2020-25180

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
Fixed
Action
Customers should upgrade to the firmware V9.1.0 or later (14942), which incorporates ISaGRAF Workbench V6.6.9. Notification of firmware release can be found here: https://secommunities.force.com/PAkb/s/article/CCN000244525 A reboot is required when upgrading to new firmware. No user actions are required to apply the remediation beyond upgrading the firmware in the RTU.
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 18 Mar 2022 · Last source change 16 Apr 2025, 17:59 UTC · CWE-319 · Cleartext Transmission of Sensitive Information

CVE recordCVE.org · 5.1
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-2020-17869
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2020-17869↗Vendor CSAF · Schneider Electric CPCERT↗Vendor advisory↗Vendor advisory↗CVE authority or vendor 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-2020-25178 · cve.blacktree.nl