What is CVE-2026-9864?

CVE-2026-9864 is a medium-severity vulnerability in Fortra Core Privileged Access Manager (Boks), classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 4.8/10. Published 2026-10-01.

How severe is CVE-2026-9864?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Fortra Core Privileged Access Manager (Boks)

CVE-2026-9864

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.

Published 2026-10-01 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

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

Fortra Core Privileged Access Manager (Boks)

Weakness classification (CWE)

CWE-338 — Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

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Frequently asked questions

What is CVE-2026-9864?: CVE-2026-9864 is a medium-severity vulnerability in Fortra Core Privileged Access Manager (Boks), classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 4.8/10. Published 2026-10-01.
How severe is CVE-2026-9864?: Medium severity. CVSS v3 base score is 4.8 out of 10.