Null Pointer Dereference in GNU Binutils Affecting ELF Orphan Section Handler
CVE-2026-90828

4.8MEDIUM

Key Information:

Vendor

Gnu
Status
Binutils
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90828?

A security flaw has been identified in the GNU Binutils version 2.47, specifically in the ELF Orphan Section Handler's function elf_orphan_compatible. This vulnerability can lead to a null pointer dereference due to improper handling of certain inputs. Attackers situated locally could exploit this flaw, resulting in potential application instability or crashes. Although the project has been alerted about this issue via a bug report, no response has been provided. A public exploit is already available, which underscores the urgency for users to apply patches and mitigate risks.

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-2026-90828 - Proof of Concept

References

https://vuldb.com/vuln/403330
vdb-entrytechnical-description
https://vuldb.com/vuln/403330/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90828
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
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

wsstssw (VulDB User)
VulDB CNA Team
.