CVE-2026-91105: CWE-122 Heap-based buffer overflow in HP Inc. HP Linux Imaging and Printing Software (HPLIP)
CVE-2026-91105 is a heap-based buffer overflow vulnerability in HP Linux Imaging and Printing Software (HPLIP) versions before 3.26.6. This flaw could allow remote attackers to execute code, escalate privileges, cause denial of service, disclose information, or modify files without authorization. HP has identified and remediated this issue in version 3.26.6.
AI Analysis
Technical Summary
HP Linux Imaging and Printing Software (HPLIP) contains a heap-based buffer overflow vulnerability (CWE-122) affecting versions prior to 3.26.6. This vulnerability was externally reported and could be exploited to achieve remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification. The CVSS 4.0 base score is 8.6, indicating high severity, with network attack vector, no privileges required, and user interaction needed. HP has released a fix in version 3.26.6 to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary code, escalate privileges, cause denial of service, disclose sensitive information, or modify files without authorization on affected systems running vulnerable HPLIP versions.
Mitigation Recommendations
Apply the official patch by upgrading HP Linux Imaging and Printing Software (HPLIP) to version 3.26.6 or later. This update contains the fix for the heap-based buffer overflow vulnerability. No other mitigation is indicated by the vendor advisory.
CVE-2026-91105: CWE-122 Heap-based buffer overflow in HP Inc. HP Linux Imaging and Printing Software (HPLIP)
Description
CVE-2026-91105 is a heap-based buffer overflow vulnerability in HP Linux Imaging and Printing Software (HPLIP) versions before 3.26.6. This flaw could allow remote attackers to execute code, escalate privileges, cause denial of service, disclose information, or modify files without authorization. HP has identified and remediated this issue in version 3.26.6.
CVSS v4.0
Score 8.6high
Affected software
HP Inc.
HP Linux Imaging and Printing Software (HPLIP)
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
HP Linux Imaging and Printing Software (HPLIP) contains a heap-based buffer overflow vulnerability (CWE-122) affecting versions prior to 3.26.6. This vulnerability was externally reported and could be exploited to achieve remote code execution, privilege escalation, denial of service, information disclosure, or unauthorized file modification. The CVSS 4.0 base score is 8.6, indicating high severity, with network attack vector, no privileges required, and user interaction needed. HP has released a fix in version 3.26.6 to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary code, escalate privileges, cause denial of service, disclose sensitive information, or modify files without authorization on affected systems running vulnerable HPLIP versions.
Mitigation Recommendations
Apply the official patch by upgrading HP Linux Imaging and Printing Software (HPLIP) to version 3.26.6 or later. This update contains the fix for the heap-based buffer overflow vulnerability. No other mitigation is indicated by the vendor advisory.
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: 6aaae7b555bf5e2cf5087543
Added to database: 09/16/2026, 19:02:13 UTC
Last enriched: 09/16/2026, 19:16:56 UTC
Last updated: 09/16/2026, 19:41:38 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.