{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-64691","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","state":"PUBLISHED","assignerShortName":"icscert","dateReserved":"2025-11-24T18:22:00.766Z","datePublished":"2026-01-16T00:06:56.554Z","dateUpdated":"2026-01-16T15:12:10.618Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Process Optimization","vendor":"AVEVA","versions":[{"lessThanOrEqual":"2024.1","status":"affected","version":"0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Christopher Wu of Veracode reported these vulnerabilities to AVEVA."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The vulnerability, if exploited, could allow an authenticated miscreant \n(OS standard user) to tamper with TCL Macro scripts and escalate \nprivileges to OS system, potentially resulting in complete compromise of\n the model application server."}],"value":"The vulnerability, if exploited, could allow an authenticated miscreant \n(OS standard user) to tamper with TCL Macro scripts and escalate \nprivileges to OS system, potentially resulting in complete compromise of\n the model application server."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","description":"CWE-94","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","shortName":"icscert","dateUpdated":"2026-01-16T00:06:56.554Z"},"references":[{"url":"https://www.aveva.com/en/support-and-success/cyber-security-updates/"},{"url":"https://softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde-ac11-5239e87a68ea"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-015-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-015-01.json"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

AVEVA recommends users take the following action:

\n\n\nFor more information, please \nAVEVA's security bulletin AVEVA-2026-001.\n\n
"}],"value":"AVEVA recommends users take the following action:\n\n\n\n * Update to AVEVA Process Optimization v2025 https://softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde-ac11-5239e87a68ea \n\n\n\n\n\nFor more information, please \nAVEVA's security bulletin AVEVA-2026-001 https://www.aveva.com/en/support-and-success/cyber-security-updates/ ."}],"source":{"advisory":"ICSA-26-015-01","discovery":"EXTERNAL"},"title":"AVEVA Process Optimization Code Injection","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

AVEVA alternatively recommends the following actions users can take to mitigate risk:

\n\n

For more information, please \nAVEVA's security bulletin AVEVA-2026-001.

\n\n
"}],"value":"AVEVA alternatively recommends the following actions users can take to mitigate risk:\n\n\n\n * Apply host and/or network firewall rules restricting the taoimr \nservice to accept traffic only from trusted source(s). By default, AVEVA\n Process Optimization listens on port 8888/8889(TLS). Please refer to \nthe AVEVA Process Optimization Installation Guide for additional details\n on ports configuration.\n\n * Apply ACLs to the installation and data folders, limiting write-access to trusted users only.\n\n * Maintain a trusted chain-of-custody on Process Optimization project \nfiles during creation, modification, distribution, backups, and use.\n\n\n\n\nFor more information, please \nAVEVA's security bulletin AVEVA-2026-001 https://www.aveva.com/en/support-and-success/cyber-security-updates/ ."}],"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-16T15:11:30.315185Z","id":"CVE-2025-64691","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-16T15:12:10.618Z"}}]}}