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High 7.5Published Oct 1, 2026

CVE-2026-79896Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Fortra BoKS Manager. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.33%, higher than 24% of scored CVEs.

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.

CVSS
7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-125
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.33% (percentile 24)
Assigned by
Fortra
NVD analysis
Awaiting Analysis
Record last updated
Oct 1, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Fortra BoKS Manager
fortra:boks_manager (from the name)
from 8.1.0.0 through 8.1.0.23; from 9.0.0.0 through 9.0.0.6
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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