Null Pointer Dereference in GNU Binutils Affecting Local Users
CVE-2026-90802

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Binutils
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90802?

A weakness has been identified in GNU Binutils 2.47, specifically in the bfd_putl64 function located in the bfd/libbfd.c file. This vulnerability can lead to a null pointer dereference, an issue that can be exploited by an attacker with local access to the system. Publicly available exploits could leverage this vulnerability, putting affected systems at risk. Despite early notification through a bug report, the project has not issued a response.

Affected Version(s)

Binutils 2.47

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-2026-90802 - Proof of Concept

References

https://vuldb.com/vuln/403304
vdb-entrytechnical-description
https://vuldb.com/vuln/403304/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90802
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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

Dem0000000 (VulDB User)
VulDB CNA Team
.