What is CVE-2026-9863?

CVE-2026-9863 is a high-severity vulnerability in Fortra Core Privileged Access Manager (Boks), classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-06-15.

How severe is CVE-2026-9863?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Fortra Core Privileged Access Manager (Boks)

CVE-2026-9863

Fortra BoKS Manager contains an OS command injection vulnerability in the client upgrade and patch tooling for legacy tar-based client installations. A malicious or compromised legacy tar-installed client selected for upgrade or patching m…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Fortra Core Privileged Access Manager (Boks) — versions boks-server 8.1.0.0, boks-server 9.0.0.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

df4dee71-de3a-4139-9588-11b62fe6c0ff (vendor-advisory)

Frequently asked questions

What is CVE-2026-9863?: CVE-2026-9863 is a high-severity vulnerability in Fortra Core Privileged Access Manager (Boks), classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-06-15.
How severe is CVE-2026-9863?: High severity. CVSS v3 base score is 7.5 out of 10.