Security Flaw in GNU Binutils Affects tg_tag_type Function
CVE-2025-11839

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Binutils
Vendor
CVE Published:
16 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11839?

A security flaw has been identified within GNU Binutils 2.45, specifically affecting the tg_tag_type function located in the prdbg.c file. This vulnerability arises from an unchecked return value during manipulation, which can lead to unintended consequences when exploited locally. The exploit has been made public, raising concerns regarding its potential to be leveraged by attackers. Users of affected versions should take immediate precautions.

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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-2025-11839 - Proof of Concept

References

https://vuldb.com/?id.328774
vdb-entrytechnical-description
https://vuldb.com/?ctiid.328774
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https://vuldb.com/?submit.661279
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)
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