GNU Binutils 2.26 PE File cp-demangle.c d_unqualified_name 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, has been found in GNU Binutils 2.26. The impacted element is the function d_unqualified_name of the file cp-demangle.c of the component PE File Handler. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2025-66861. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in GNU Binutils 2.26 and classified as problematic. This issue affects the function d_unqualified_name 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. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

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

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-66861 since 12/08/2025. The exploitation is known to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 280126 (Linux Distros Unpatched Vulnerability : CVE-2025-66861), 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 (280126), EUVD (EUVD-2025-205617) and CERT Bund (WID-SEC-2025-2933). Statistical analysis made it clear that VulDB provides the best quality 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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 280126
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-66861

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-2025-66861 (🔒)
GCVE (CVE): GCVE-0-2025-66861
GCVE (VulDB): GCVE-100-338675
EUVD: 🔒
CERT Bund: WID-SEC-2025-2933 - binutils: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/29/2025 17:50
Updated: 12/30/2025 12:28
Changes: 12/29/2025 17:50 (56), 12/30/2025 06:16 (1), 12/30/2025 11:29 (2), 12/30/2025 12:28 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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