Junglewise Threat Intelligence

CVE-2026-91098: HP HPLIP multiple vulnerabilities enabling RCE and privilege escalation

CVE-2026-91098 · Severity: critical · CVSS 9.8 · Published 2026-09-16

Executive brief

HP HPLIP is printing software used by millions of users to manage printers and print operations on Windows, Mac, and Linux systems. Multiple vulnerabilities in HPLIP could allow attackers to execute arbitrary code, gain elevated privileges, disrupt printing services, or access sensitive information—potentially compromising any system where the software is installed.

Technical details

HP HPLIP contains multiple externally reported vulnerabilities across several software components. The issues enable remote code execution, privilege escalation, denial of service, information disclosure, and unauthorized file modification under certain conditions. While the specific root causes and attack vectors are not detailed in the advisory summary, the CVSS 9.8 score indicates a critical network-accessible vulnerability requiring minimal or no preconditions. HP has identified and patched these issues; affected users should apply available remediation through official HP support channels.

Affected products

  • HP HPLIP

Timeline

  • 2026-09-16: disclosed
  • 2026-09-16: patched

References

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