FontForge 20230101 /fontforge/sfd.c utf7toutf8_copy memory leak

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability was found in FontForge 20230101. It has been classified as problematic. The impacted element is the function utf7toutf8_copy of the file /fontforge/sfd.c. This manipulation causes memory leak. This vulnerability is tracked as CVE-2025-50951. No exploit exists.

Detailsinfo

A vulnerability was found in FontForge 20230101. It has been declared as problematic. Affected by this vulnerability is the function utf7toutf8_copy of the file /fontforge/sfd.c. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-50951 since 06/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 271718 (Linux Distros Unpatched Vulnerability : CVE-2025-50951), 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 vulnerability database at Tenable (271718). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

Website

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

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 271718
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-50951

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/16/2025 CVE reserved
10/23/2025 +129 days Advisory disclosed
10/23/2025 +0 days VulDB entry created
10/28/2025 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-50951 (🔒)
GCVE (CVE): GCVE-0-2025-50951
GCVE (VulDB): GCVE-100-329677

Entryinfo

Created: 10/23/2025 18:13
Updated: 10/28/2025 16:17
Changes: 10/23/2025 18:13 (53), 10/28/2025 16:17 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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