Out-of-bounds Read in Fortra Boks Manager
CVE-2026-79896
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-79896?
- CVE-2026-79896 is a high-severity vulnerability in Fortra Boks Manager, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-10-01.
- How severe is CVE-2026-79896?
- High severity. CVSS v3 base score is 7.5 out of 10.