Out-of-Bounds Read Vulnerability in GNU Binutils Linker
CVE-2025-11494

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Binutils
Vendor
CVE Published:
8 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11494?

A vulnerability in the GNU Binutils 2.45 linker has been identified, specifically within the function _bfd_x86_elf_late_size_sections of the file bfd/elfxx-x86.c. This flaw can result in an out-of-bounds read, which can potentially allow attackers to gain unauthorized access to sensitive information. The attack requires local access, and publicly available exploits have been reported. Users and administrators are advised to apply the provided patch identified as b6ac5a8a5b82f0ae6a4642c8d7149b325f4cc60a to mitigate this risk.

Affected Version(s)

Binutils 2.45

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-11494 - Proof of Concept

References

https://vuldb.com/?id.327619
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327619
signaturepermissions-required
https://vuldb.com/?submit.668281
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yifan Zhang (VulDB User)
JSON
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CVE-2025-11494 : Out-of-Bounds Read Vulnerability in GNU Binutils Linker