CVE-2026-102566

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.9% of scored records. A rank, not a probability.

NVD base score

8.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-30.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-29 14:22Z29 DAYS AGO

Last updated

2026-09-29 14:49Z29 DAYS AGO

Reserved

2026-09-29

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

779f5236e55af51b92c6457ef15a5830edb2aa961349fac6820873efed813c3b

• github.comPull Request #2068https://github.com/OpenNMT/CTranslate2/pull/2068issue-trackingpatch
• github.comPatch Commithttps://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96dpatch
• github.comhttps://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L656-L657technical-description
• github.comCTranslate2 v4.8.1 Release Noteshttps://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1release-notes
• github.comhttps://github.com/OpenNMT/CTranslate2product
• www.vulncheck.comVulnCheck Advisory: CTranslate2 before 4.8.1 Heap Buffer Overflow via model.binhttps://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-heap-buffer-overflow-via-model-binthird-party-advisory