CVE-2026-52491: n/a
Description
CVE-2026-52491 is a high-severity vulnerability in libtiff identified in the thumbnail.c main component. It allows an attacker with local access to execute arbitrary code due to a flaw in the affected code. The vulnerability has a CVSS score of 8.4, indicating significant impact on confidentiality, integrity, and availability. No specific affected versions or patches are currently documented.
CVSS v3.1
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in libtiff (commit 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938) involves the main function in libtiff/tools/thumbnail.c, which can be exploited by an attacker to execute arbitrary code. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates local attack vector with low complexity and no privileges or user interaction required, resulting in high impact on confidentiality, integrity, and availability. The weakness is related to CWE-190 (Integer Overflow or Wraparound). There is no vendor advisory or patch information available at this time.
Potential Impact
Successful exploitation allows an attacker with local access to execute arbitrary code on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability of the system. The high CVSS score reflects the critical nature of this impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, restrict local access to trusted users only and monitor for suspicious activity related to libtiff usage.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a8e07c1acd9273b49b99ee3
Added to database: 08/25/2026, 21:23:13 UTC
Last enriched: 09/07/2026, 15:41:37 UTC
Last updated: 10/09/2026, 06:48:17 UTC
Views: 54
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