CVE-2026-91106: CWE-122 Heap-based buffer overflow in HP Inc. HP Linux Imaging and Printing Software (HPLIP)
CVE-2026-91106 is a critical heap-based buffer overflow vulnerability in HP Linux Imaging and Printing Software (HPLIP) versions prior to 3.26.6. This flaw could allow an unauthenticated attacker to execute arbitrary code remotely, escalate privileges, cause denial of service, disclose information, or modify files without authorization. HP has identified and remediated this vulnerability in version 3.26.6.
AI Analysis
Technical Summary
This vulnerability (CWE-122) affects multiple components of HP Linux Imaging and Printing Software (HPLIP) and is caused by a heap-based buffer overflow. It enables remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions. The CVSS 4.0 score is 9.3 (critical), indicating high impact with network attack vector, no required privileges or user interaction, and high confidentiality, integrity, and availability impacts. The affected versions are all releases before 3.26.6. HP has remediated the issue in version 3.26.6.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication or user interaction to execute arbitrary code, escalate privileges, cause denial of service, disclose sensitive information, or modify files without authorization. This poses a critical risk to affected systems running vulnerable HPLIP versions.
Mitigation Recommendations
A fix is available in HP Linux Imaging and Printing Software version 3.26.6. Users should upgrade to version 3.26.6 or later to remediate this vulnerability. No additional vendor advisory content is provided, so patch status is based on the stated affected versions and remediation version.
CVE-2026-91106: CWE-122 Heap-based buffer overflow in HP Inc. HP Linux Imaging and Printing Software (HPLIP)
Description
CVE-2026-91106 is a critical heap-based buffer overflow vulnerability in HP Linux Imaging and Printing Software (HPLIP) versions prior to 3.26.6. This flaw could allow an unauthenticated attacker to execute arbitrary code remotely, escalate privileges, cause denial of service, disclose information, or modify files without authorization. HP has identified and remediated this vulnerability in version 3.26.6.
CVSS v4.0
Score 9.3critical
Affected software
HP Inc.
HP Linux Imaging and Printing Software (HPLIP)
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-122) affects multiple components of HP Linux Imaging and Printing Software (HPLIP) and is caused by a heap-based buffer overflow. It enables remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification under certain conditions. The CVSS 4.0 score is 9.3 (critical), indicating high impact with network attack vector, no required privileges or user interaction, and high confidentiality, integrity, and availability impacts. The affected versions are all releases before 3.26.6. HP has remediated the issue in version 3.26.6.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication or user interaction to execute arbitrary code, escalate privileges, cause denial of service, disclose sensitive information, or modify files without authorization. This poses a critical risk to affected systems running vulnerable HPLIP versions.
Mitigation Recommendations
A fix is available in HP Linux Imaging and Printing Software version 3.26.6. Users should upgrade to version 3.26.6 or later to remediate this vulnerability. No additional vendor advisory content is provided, so patch status is based on the stated affected versions and remediation version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hp
- Date Reserved
- 2026-09-14T19:13:23.919Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aaae7b555bf5e2cf5087544
Added to database: 09/16/2026, 19:02:13 UTC
Last enriched: 09/16/2026, 19:16:52 UTC
Last updated: 09/16/2026, 20:08:33 UTC
Views: 6
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