GNU Binutils 2.26 PE File cp-demangle.c d_discriminator denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in GNU Binutils 2.26. This affects the function d_discriminator of the file cp-demangle.c of the component PE File Handler. The manipulation results in denial of service. This vulnerability is identified as CVE-2025-66863. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNU Binutils 2.26. It has been classified as problematic. Affected is the function d_discriminator of the file cp-demangle.c of the component PE File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-66863 since 12/08/2025. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 280129 (Linux Distros Unpatched Vulnerability : CVE-2025-66863), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the databases at Tenable (280129), EUVD (EUVD-2025-205619) and CERT Bund (WID-SEC-2025-2933). Once again VulDB remains the best source for vulnerability data.

Affected

  • Open Source binutils

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280129
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-66863

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/08/2025 CVE reserved
12/29/2025 +21 days Advisory disclosed
12/29/2025 +0 days VulDB entry created
12/30/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: gnu.org

Advisory: github.com
Status: Not defined

CVE: CVE-2025-66863 (🔒)
GCVE (CVE): GCVE-0-2025-66863
GCVE (VulDB): GCVE-100-338676
EUVD: 🔒
CERT Bund: WID-SEC-2025-2933 - binutils: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/29/2025 17:51
Updated: 12/30/2025 12:28
Changes: 12/29/2025 17:51 (56), 12/30/2025 05:47 (1), 12/30/2025 11:19 (2), 12/30/2025 12:28 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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