GNU Binutils 2.47 Section Merge bfd/merge.c _bfd_write_merged_section null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k2.14

Summaryinfo

A vulnerability was found in GNU Binutils 2.47. It has been declared as problematic. The affected element is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-90830. The attack requires a local approach. Moreover, an exploit is present. The project was informed of the problem early through a bug report but has not responded yet.

Detailsinfo

A vulnerability was found in GNU Binutils 2.47. It has been classified as problematic. Affected is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at sourceware.org. This vulnerability is traded as CVE-2026-90830. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a public exploit are known.

The exploit is shared for download at sourceware.org. It is declared as proof-of-concept. The project was informed of the problem early through a bug report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/13/2026 Advisory disclosed
09/13/2026 +0 days VulDB entry created
09/13/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: gnu.org

Advisory: 34452
Status: Not defined

CVE: CVE-2026-90830 (🔒)
GCVE (CVE): GCVE-0-2026-90830
GCVE (VulDB): GCVE-100-403332
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/13/2026 21:26
Changes: 09/13/2026 21:26 (60)
Complete: 🔍
Submitter: wsstssw
Cache ID: 216::103

Submitinfo

Accepted

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