Quick answers
- Is CVE-2026-79896 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-79896 being exploited in the wild.
- How severe is CVE-2026-79896?
- High severity, with a CVSS score of 7.5, published 1 October 2026.
- Which products and versions are affected?
- Fortra BoKS Manager.
- Is there a fix for CVE-2026-79896?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-79896 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-79896?
- Check whether you run Fortra BoKS Manager. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in the custom TLS ClientHello parser within boks_portmux, a network daemon. A remote unauthenticated attacker can trigger the vulnerability by submitting a malformed TLS ClientHello message, leading to a crash of the boks_portmux process. While automatic restart mechanisms normally recover the service, sustained attack traffic can maintain the denial of service.
Affected products
- Fortra BoKS Manager
Timeline
- 2026-10-01: disclosed