GNU Binutils 2.26 PE File cplus-dem.c gnu_special buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in GNU Binutils 2.26. This vulnerability affects the function gnu_special of the file cplus-dem.c of the component PE File Handler. The manipulation results in buffer overflow. This vulnerability is reported as CVE-2025-66862. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in GNU Binutils 2.26. Affected is the function gnu_special of the file cplus-dem.c of the component PE File Handler. The manipulation 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. CVE summarizes:

A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-66862 since 12/08/2025. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 280132 (Linux Distros Unpatched Vulnerability : CVE-2025-66862), 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 (280132), EUVD (EUVD-2025-205616) and CERT Bund (WID-SEC-2025-2933). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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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: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280132
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-66862

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-2025-66862 (🔒)
GCVE (CVE): GCVE-0-2025-66862
GCVE (VulDB): GCVE-100-338682
EUVD: 🔒
CERT Bund: WID-SEC-2025-2933 - binutils: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/29/2025 17:53
Updated: 12/30/2025 12:28
Changes: 12/29/2025 17:53 (56), 12/30/2025 06:16 (1), 12/30/2025 10:35 (2), 12/30/2025 12:28 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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