Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 1.16% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2022
CVE-2020-25180High confidence
Rockwell Automation ISaGRAF5 Runtime Use of Hard-coded Cryptographic Key
Rockwell Automation · ISaGRAF Runtime
5.3MediumCVSS 3.1
Scheduled
Patch availableMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
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
- Confirm that the asset runs Rockwell Automation ISaGRAF Runtime and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Direct vendor intelligence
1 currentAuthoritative 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.
SEVD-2021-159-04 · CSAF 2.0 · revision 8.0.0 · finalSchneider Electric CPCERTISaGRAF Vulnerabilities in IEC 61131-3 Programming and Engineering Tools
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
- Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x includes the functionality of setting a password that is required to execute privileged commands. The password value passed to ISaGRAF Runtime is the result of encryption performed with a fixed key value using the tiny encryption algorithm (TEA) on an entered or saved password. A remote, unauthenticated attacker could pass their own encrypted password to the ISaGRAF 5 Runtime, which may result in information disclosure on the device.
- 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.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available01
What, why and how
Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x includes the functionality of setting a password that is required to execute privileged commands. The password value passed to ISaGRAF Runtime is the result of encryption performed with a fixed key value using the tiny encryption algorithm (TEA) on an entered or saved password. A remote, unauthenticated attacker could pass their own encrypted password to the ISaGRAF 5 Runtime, which may result in information disclosure on the device.
What
Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x includes the functionality of setting a password that is required to execute privileged commands. The password value passed to ISaGRAF Runtime is the result of encryption performed with a fixed key value using the tiny encryption algorithm (TEA) on an entered or saved password. A remote, unauthenticated attacker could pass their own encrypted password to the ISaGRAF 5 Runtime, which may result in information disclosure on the device.
Why
The product uses a hard-coded, unchangeable cryptographic key.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may obtain information outside the intended access boundary.
What
Rockwell Automation ISaGRAF Runtime Versions 4.x and 5.x includes the functionality of setting a password that is required to execute privileged commands. The password value passed to ISaGRAF Runtime is the result of encryption performed with a fixed key value using the tiny encryption algorithm (TEA) on an entered or saved password. A remote, unauthenticated attacker could pass their own encrypted password to the ISaGRAF 5 Runtime, which may result in information disclosure on the device.
Why
The product uses a hard-coded, unchangeable cryptographic key.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may obtain information outside the intended access boundary.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 → Use of Hard-coded Cryptographic Key → obtain information outside the intended access boundary
- 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-321 ↗
CWE-321: Use of Hard-coded Cryptographic Key. The product uses a hard-coded, unchangeable cryptographic key.
- 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:N/A:NCommon 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.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.- 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.
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
- 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
- Rockwell Automation ISaGRAF Runtime Versions 5.2 and prior default component of Schneider Electric MiCOM C264 Versions up to D6.x
- 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, 16:41 UTC · CWE-321 · Use of Hard-coded Cryptographic Key
CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2020-17871
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
View recent updates ↗What changed after publication
- Affected versionsThe structured affected or fixed version information changed.Schneider Electric CPCERT ↗
- Before
- 4.x; 5.x · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- 4.x; 5.x · Fixed: 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.
- Remediation statusRemediation status changed from Awaiting fix to Patch available.Schneider Electric CPCERT ↗
- Before
- Awaiting fix
- After
- Patch available
CVE published
Fixed release recorded from official guidance
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.