GNU Binutils 2.47 ld bfd/elf64-x86-64.c elf_x86_64_relocate_section roff buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k1.27

Summaryinfo

A vulnerability was found in GNU Binutils 2.47. It has been rated as problematic. Affected by this issue is the function elf_x86_64_relocate_section of the file bfd/elf64-x86-64.c of the component ld. Performing a manipulation of the argument roff results in buffer overflow. This vulnerability is known as CVE-2026-90803. Attacking locally is a requirement. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GNU Binutils 2.47. It has been classified as problematic. This affects the function elf_x86_64_relocate_section of the file bfd/elf64-x86-64.c of the component ld. The manipulation of the argument roff with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at sourceware.org. This vulnerability is uniquely identified as CVE-2026-90803. The exploitability is told to be easy. An attack has to be approached locally. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Upgrading to version 2.48 eliminates this vulnerability. Applying the patch 471130b39c03623ec6d78ece377ff4da3f6bfe7b is able to eliminate this problem. The bugfix is ready for download at sourceware.org. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best 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: Buffer overflow
CWE: CWE-120 / CWE-119
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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Binutils 2.48
Patch: 471130b39c03623ec6d78ece377ff4da3f6bfe7b

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: 34444
Status: Confirmed

CVE: CVE-2026-90803 (🔒)
GCVE (CVE): GCVE-0-2026-90803
GCVE (VulDB): GCVE-100-403305
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/13/2026 17:39
Changes: 09/13/2026 17:39 (64)
Complete: 🔍
Submitter: Dem0000000
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #920280: GNU Binutils 2.47 (version date 20260726) Heap-based Buffer Overflow (by Dem0000000)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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