Out-of-bounds write in Core Privileged Access Manager (BoKS) - CVE-2026-79900
Published: October 6, 2026
Vulnerability identifier: #VU153307
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-79900
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an out-of-bounds write in boks_ksllogsd KSL checksum initialization when processing an authenticated KSL start message containing an oversized MD field. A remote user can supply an oversized OpenSSL-recognized digest name to write beyond the end of a heap allocation and cause a denial of service.
The digest name is validated as recognized by OpenSSL but is not validated to fit in the fixed 16-byte checksum context field.
Affected software
Core Privileged Access Manager (BoKS)
How to mitigate CVE-2026-79900
Install security update from vendor's website.
Core Privileged Access Manager (BoKS) - addressed in versions 8.1.0.24, 9.0.0.7