Out-of-bounds read in Core Privileged Access Manager (BoKS) - CVE-2026-79896
Published: October 6, 2026
Vulnerability identifier: #VU153304
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-79896
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in the custom TLS ClientHello parser used by boks_portmux when processing a malformed TLS ClientHello. A remote attacker can submit a malformed ClientHello to cause a denial of service.
Repeated requests can sustain the service interruption.
Affected software
Core Privileged Access Manager (BoKS)
How to mitigate CVE-2026-79896
Install security update from vendor's website.