GNOME GLib GVariant Parser bytestring_parse/string_parse buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNOME GLib and classified as critical. This vulnerability affects the function bytestring_parse/string_parse of the component GVariant Parser. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2025-14087. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in GNOME GLib (the affected version unknown). It has been declared as critical. Affected by this vulnerability is the function bytestring_parse/string_parse of the component GVariant Parser. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.

The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2025-14087. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/06/2026).

The vulnerability scanner Nessus provides a plugin with the ID 278740 (Debian dla-4412 : libglib2.0-0 - security update), 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 (278740), EUVD (EUVD-2025-202405) and CERT Bund (WID-SEC-2026-1453). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Red Hat Enterprise Linux
  • Oracle Linux
  • NetApp ActiveIQ Unified Manager
  • RESF Rocky Linux

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 5.6
CNA Vector: 🔒

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: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 278740
Nessus Name: Debian dla-4412 : libglib2.0-0 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/07/2025 Advisory disclosed
12/07/2025 +0 days VulDB entry created
06/06/2026 +181 days VulDB entry last update

Sourcesinfo

Vendor: gnome.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2025-14087 (🔒)
GCVE (CVE): GCVE-0-2025-14087
GCVE (VulDB): GCVE-100-334645
EUVD: 🔒
CERT Bund: WID-SEC-2026-1453 - Red Hat Enterprise Linux (glib): Mehrere Schwachstellen

Entryinfo

Created: 12/07/2025 08:57
Updated: 06/06/2026 03:43
Changes: 12/07/2025 08:57 (50), 12/10/2025 11:28 (1), 12/10/2025 12:15 (12), 12/17/2025 00:50 (2), 02/07/2026 00:23 (11), 05/12/2026 13:54 (7), 06/06/2026 03:43 (1)
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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