CVE-2025-11495: Heap-based Buffer Overflow in GNU Binutils
A vulnerability was determined in GNU Binutils 2.45. The affected element is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. Patch name: 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0. To fix this issue, it is recommended to deploy a patch.
AI Analysis
Technical Summary
The vulnerability CVE-2025-11495 affects GNU Binutils 2.45 specifically in the elf_x86_64_relocate_section function of elf64-x86-64.c. This flaw leads to a heap-based buffer overflow when the function manipulates data improperly. Exploitation requires local access, and no user interaction is needed. The vulnerability has been publicly disclosed, and a patch identified by commit 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0 is recommended to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability may lead to memory corruption due to heap-based buffer overflow, potentially causing application crashes or arbitrary code execution with the privileges of the local user. However, the attack vector is limited to local access, reducing the risk of remote exploitation. The CVSS score of 4.8 reflects a medium severity level.
Mitigation Recommendations
A patch is available for this vulnerability as indicated by the referenced patch commit. It is recommended to apply the official patch to GNU Binutils version 2.45 to remediate the heap-based buffer overflow in the elf_x86_64_relocate_section function. Since this is not a cloud service, users must manually update their installations. No additional vendor advisory was provided, so check the GNU Binutils project resources for the official patch and update instructions.
CVE-2025-11495: Heap-based Buffer Overflow in GNU Binutils
Description
A vulnerability was determined in GNU Binutils 2.45. The affected element is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. Patch name: 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0. To fix this issue, it is recommended to deploy a patch.
CVSS v4.0
Score 4.8medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-11495 affects GNU Binutils 2.45 specifically in the elf_x86_64_relocate_section function of elf64-x86-64.c. This flaw leads to a heap-based buffer overflow when the function manipulates data improperly. Exploitation requires local access, and no user interaction is needed. The vulnerability has been publicly disclosed, and a patch identified by commit 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0 is recommended to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability may lead to memory corruption due to heap-based buffer overflow, potentially causing application crashes or arbitrary code execution with the privileges of the local user. However, the attack vector is limited to local access, reducing the risk of remote exploitation. The CVSS score of 4.8 reflects a medium severity level.
Mitigation Recommendations
A patch is available for this vulnerability as indicated by the referenced patch commit. It is recommended to apply the official patch to GNU Binutils version 2.45 to remediate the heap-based buffer overflow in the elf_x86_64_relocate_section function. Since this is not a cloud service, users must manually update their installations. No additional vendor advisory was provided, so check the GNU Binutils project resources for the official patch and update instructions.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- VulDB
- Date Reserved
- 2025-10-08T13:29:56.368Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 68e6c5b748d5c0a0f2492e2e
Added to database: 10/08/2025, 20:12:39 UTC
Last enriched: 07/15/2026, 11:14:57 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 224
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.
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.