Out-of-Bounds Read Vulnerability in GNU Binutils Affects Local Security
CVE-2025-11840

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Binutils
Vendor
CVE Published:
16 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11840?

A vulnerability has been detected in GNU Binutils version 2.45, specifically within the function vfinfo located in ldmisc.c. This issue allows attackers to perform out-of-bounds read operations, posing a potential risk to the integrity of the system. The vulnerability is only exploitable locally, meaning that an attacker must have local access to the system to carry out the attack. An exploit for this weakness has been publicly released, making it crucial for users to apply the provided patch (ID: 16357) to mitigate any security risks.

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-2025-11840 - Proof of Concept

References

https://vuldb.com/?id.328775
vdb-entrytechnical-description
https://vuldb.com/?ctiid.328775
signaturepermissions-required
https://vuldb.com/?submit.661281
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

JJLeo (VulDB User)
JSON
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CVE-2025-11840 : Out-of-Bounds Read Vulnerability in GNU Binutils Affects Local Security