Heap buffer overflow in boks_sshd revoked-key error handling

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-14316
StatePUBLISHED
AssignerFortra
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-01 17:17:21 UTC
Updated2026-10-01 20:34:26 UTC
DescriptionThe revoked-key error path builds a human-readable failure reason using sprintf() into a heap buffer. The allocated buffer is too small for the final formatted message. When sprintf() writes the full message, it can write past the end of the heap allocation.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from df4dee71-de3a-4139-9588-11b62fe6c0ff

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Problem Types: CWE-122 | CWE-122 CWE-122 Heap-based buffer overflow

VersionSourceTypeScoreSeverityVector
3.1df4dee71-de3a-4139-9588-11b62fe6c0ffSecondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
3.1CNACVSS8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Fortra Core Privileged Access Manager BoKS affected 8.1.0.0 8.1.0.30 custom Not specified
CNA Fortra Core Privileged Access Manager BoKS affected 10.1.0.0 10.1.1.0 custom Not specified

References

ReferenceSourceLinkTags
www.fortra.com/security/advisories/product-security/fi-2026-019 df4dee71-de3a-4139-9588-11b62fe6c0ff www.fortra.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade to a patched version.

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