CVE-2026-15520: Heap-based Buffer Overflow in GNU LibreDWG
GNU LibreDWG version 0.13.4-154-g0b573035 contains a heap-based buffer overflow vulnerability in the decompress_R2004_section function within src/decode.c. This vulnerability requires local access to exploit and has been publicly disclosed. Upgrading to version 0.14.8396 addresses this issue.
AI Analysis
Technical Summary
CVE-2026-15520 is a heap-based buffer overflow vulnerability found in GNU LibreDWG 0.13.4-154-g0b573035, specifically in the decompress_R2004_section function of the R2004 Section Decompression component (src/decode.c). The vulnerability can be triggered by a local attacker manipulating input to cause memory corruption. The issue has been publicly disclosed, and a fix is available in version 0.14.8396, identified by patch 3d0f9fc2eddbd6579c99af3111c37c98f03475d0.
Potential Impact
Successful exploitation of this vulnerability could lead to a heap-based buffer overflow, potentially causing application crashes or arbitrary code execution under the privileges of the local user. The attack requires local access and does not involve user interaction. The CVSS 4.8 score reflects a medium severity with limited attack vector and privileges required.
Mitigation Recommendations
Upgrade GNU LibreDWG to version 0.14.8396 or later, which contains the official fix for this vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-15520: Heap-based Buffer Overflow in GNU LibreDWG
Description
GNU LibreDWG version 0.13.4-154-g0b573035 contains a heap-based buffer overflow vulnerability in the decompress_R2004_section function within src/decode.c. This vulnerability requires local access to exploit and has been publicly disclosed. Upgrading to version 0.14.8396 addresses this issue.
CVSS v4.0
Score 4.8medium
Affected software
pkg:github/libredwg/libredwgcpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15520 is a heap-based buffer overflow vulnerability found in GNU LibreDWG 0.13.4-154-g0b573035, specifically in the decompress_R2004_section function of the R2004 Section Decompression component (src/decode.c). The vulnerability can be triggered by a local attacker manipulating input to cause memory corruption. The issue has been publicly disclosed, and a fix is available in version 0.14.8396, identified by patch 3d0f9fc2eddbd6579c99af3111c37c98f03475d0.
Potential Impact
Successful exploitation of this vulnerability could lead to a heap-based buffer overflow, potentially causing application crashes or arbitrary code execution under the privileges of the local user. The attack requires local access and does not involve user interaction. The CVSS 4.8 score reflects a medium severity with limited attack vector and privileges required.
Mitigation Recommendations
Upgrade GNU LibreDWG to version 0.14.8396 or later, which contains the official fix for this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-12T11:27:17.703Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5443d268715ace43e61baf
Added to database: 07/13/2026, 01:48:02 UTC
Last enriched: 07/13/2026, 02:02:40 UTC
Last updated: 07/13/2026, 02:41:42 UTC
Views: 7
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