CVE-2026-91104 HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities

Critical 9.3 Published 16 Sep 2026 Updated 17 Sep 2026

Multiple vulnerabilities in HPLIP allow remote code execution, privilege escalation, and data modification via memory corruption flaws.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-91104?

CVE-2026-91104 is a critical memory corruption vulnerability in HP Linux Imaging and Printing Software (HPLIP), published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions.

Weakness: CWE-122

Which versions are affected by CVE-2026-91104?

It affects 1 product.

Products include Hp Linux Imaging and Printing.

How do I fix CVE-2026-91104?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-91104 being exploited?

There is no known exploitation of CVE-2026-91104 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-91104, GHSA-4g7p-h353-2q55, UBUNTU-CVE-2026-91104.