GNOME glib GString g_string_maybe_expand integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in GNOME glib. This affects the function g_string_maybe_expand of the component GString. Executing a manipulation can lead to integer overflow. This vulnerability is handled as CVE-2025-6052. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNOME glib (affected version not known). It has been declared as critical. This vulnerability affects the function g_string_maybe_expand of the component GString. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. The impact remains unknown. CVE summarizes:

A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.

The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2025-6052 since 06/13/2025. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/03/2026).

The vulnerability scanner Nessus provides a plugin with the ID 240347 (Fedora 42 : mingw-glib2 (2025-60e9097b77)), 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 (240347), EUVD (EUVD-2025-18285) and CERT Bund (WID-SEC-2026-0164). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • IBM Java SDK
  • Debian Linux
  • Open Source OpenJDK
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • IBM WebSphere Application Server
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Azul Zulu
  • IBM WebSphere Service Registry and Repository
  • Oracle Java SE
  • Oracle GraalVM
  • Amazon Corretto
  • Tenable Security Nessus Network Monitor

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 3.7
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 240347
Nessus Name: Fedora 42 : mingw-glib2 (2025-60e9097b77)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/13/2025 Advisory disclosed
06/13/2025 +0 days CVE reserved
06/13/2025 +0 days VulDB entry created
02/03/2026 +235 days VulDB entry last update

Sourcesinfo

Vendor: gnome.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2025-6052 (🔒)
GCVE (CVE): GCVE-0-2025-6052
GCVE (VulDB): GCVE-100-312496
EUVD: 🔒
CERT Bund: WID-SEC-2026-0164 - Oracle Java SE: Mehrere Schwachstellen

Entryinfo

Created: 06/13/2025 15:32
Updated: 02/03/2026 14:40
Changes: 06/13/2025 15:32 (50), 06/13/2025 18:26 (12), 06/13/2025 19:12 (1), 06/27/2025 05:18 (2), 08/21/2025 01:35 (12), 01/23/2026 13:18 (7), 02/03/2026 14:40 (1)
Complete: 🔍
Cache ID: 216::103

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