CVE-2026-79896
Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption.
| CWE | CWE-125 |
| Vendor | fortra |
| Product | boks manager |
| Published | Oct 1, 2026 |
| Last Updated | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Fortra / BoKS Manager
8.1.0.0 ≤ 8.1.0.23 9.0.0.0 ≤ 9.0.0.6