---
id: CVE-2025-14087
title: A flaw was found in GLib (Gnome Lib)
summary: >-
  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
  maliciou…
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-190
vendor: gnome
product: glib
affected:
  - glib < 2.86.3
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - enterprise_linux = 10.0
patched:
  - glib 2.86.3
published: '2025-12-10'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14087'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:15953'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:15969'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:15971'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19148'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19361'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19452'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19457'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19459'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19460'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19523'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19524'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19565'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19566'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19567'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:21275'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:22634'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:25096'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:29197'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:7461'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-14087'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2419093'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/glib/-/issues/3834'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00826
epssPercentile: 0.55647
ingestedAt: '2026-06-29T13:24:34.619Z'
---

## Overview

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.

## Affected

- `glib < 2.86.3`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `enterprise_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `glib 2.86.3`