VDB-337871 · CVE-2025-65410 · EUVD-2025-204842

GNU Unrtf 0.21.10 src/main.c filename stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in GNU Unrtf 0.21.10. The affected element is an unknown function of the file src/main.c. The manipulation of the argument filename leads to stack-based overflow. This vulnerability is documented as CVE-2025-65410. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNU Unrtf 0.21.10. This issue affects some unknown functionality of the file src/main.c. The manipulation of the argument filename with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability. The summary by CVE is:

A stack overflow in the src/main.c component of GNU Unrtf v0.21.10 allows attackers to cause a Denial of Service (DoS) via injecting a crafted input into the filename parameter.

The identification of this vulnerability is CVE-2025-65410 since 11/18/2025. The exploitation is known to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/30/2025).

The vulnerability scanner Nessus provides a plugin with the ID 279646 (Linux Distros Unpatched Vulnerability : CVE-2025-65410), 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 (279646) and EUVD (EUVD-2025-204842). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Unrtf

Version

0.21.10

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 279646
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-65410

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/18/2025 CVE reserved
12/23/2025 +35 days Advisory disclosed
12/23/2025 +0 days VulDB entry created
12/30/2025 +7 days VulDB entry last update

Sourcesinfo

Vendor: gnu.org

Status: Not defined

CVE: CVE-2025-65410 (🔒)
GCVE (CVE): GCVE-0-2025-65410
GCVE (VulDB): GCVE-100-337871
EUVD: 🔒

Entryinfo

Created: 12/23/2025 19:38
Updated: 12/30/2025 19:59
Changes: 12/23/2025 19:38 (53), 12/25/2025 08:09 (2), 12/30/2025 19:59 (1)
Complete: 🔍
Cache ID: 216::103