Quick answers
- Is CVE-2026-91103 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91103 being exploited in the wild.
- How severe is CVE-2026-91103?
- Critical severity, with a CVSS score of 9.8, published 16 September 2026.
- Which products and versions are affected?
- HP HPLIP.
- Is there a fix for CVE-2026-91103?
- 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-2026-91103 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-91103?
- Check whether you run HPLIP, Hp Linux Imaging or Hp Printing. 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
HP HPLIP contains multiple externally reported vulnerabilities affecting several software components. The vulnerabilities could enable remote code execution, privilege escalation, denial of service, information disclosure, and unauthorized file modification under certain conditions. Attack vectors and specific preconditions vary by individual vulnerability. HP has released patches to remediate these issues. The CVSS score of 9.8 indicates critical severity with network-based attack potential.
Affected products
- HP HPLIP
Timeline
- 2026-09-16: disclosed