CVE-2026-9864 Fortra BoKS Server Agent adjoin machine-account password generation vulnerability

Medium 4.8 Published Updated

Predictable machine-account passwords in Fortra BoKS allow attackers to guess credentials and gain unauthorized access to joined systems.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-9864?

CVE-2026-9864 is a medium-severity vulnerability in Fortra Core Privileged Access Manager (BoKS), published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Fortra BoKS Server Agent contains a predictable password generation vulnerability in the adjoin utility. Machine-account passwords generated during Active Directory join or password renewal operations may have significantly less entropy than intended, making them more susceptible to prediction by an attacker who can estimate when the password was generated.

Weakness: CWE-338

Which versions are affected by CVE-2026-9864?

How do I fix CVE-2026-9864?

No fix has been published for CVE-2026-9864 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9864 being exploited?

There is no known exploitation of CVE-2026-9864 in the wild and no public exploit code.

Sources

Also known as GHSA-rh95-jwc3-f9fr.

Is CVE-2026-9864 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free