Skip to main content

GLib CVE-2025-14087

CRITICAL
Integer Overflow or Wraparound (CWE-190)
2025-12-10 secalert@redhat.com
Denial Of Service RCE Integer Overflow Glib Enterprise Linux
Critical
Disputed · 9.8 NVD
Share

Severity by source

Sources disagree (Medium–Critical)
NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.6 HIGH

Network-reachable parser flaw with no auth/UI, but DoS is the proven impact (A:H) while code execution is unproven, so C/I lowered to L pending evidence.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
SUSE
5.6 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Red Hat
5.6 MEDIUM
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

8
Analysis Updated
Jun 24, 2026 - 17:31 vuln.today
v3 (cvss_changed)
Analysis Updated
Jun 24, 2026 - 17:31 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jun 24, 2026 - 17:22 vuln.today
cvss_changed
Severity Changed
Jun 24, 2026 - 17:22 NVD
MEDIUM CRITICAL
CVSS changed
Jun 24, 2026 - 17:22 NVD
5.6 (MEDIUM) 9.8 (CRITICAL)
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 18, 2026 - 17:37 vuln.today
CVE Published
Dec 10, 2025 - 09:15 nvd
MEDIUM 5.6

DescriptionNVD

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.

AnalysisAI

Heap corruption in GLib (GNOME's core C utility library) lets remote attackers trigger a buffer-underflow in the GVariant parser by supplying maliciously crafted serialized/text input, resulting in denial of service and potentially arbitrary code execution. Any application linking GLib that deserializes untrusted GVariant data is exposed, which spans broad swaths of the Linux desktop and system stack across Red Hat Enterprise Linux 7-10 and SUSE. There is no public exploit identified at time of analysis, and EPSS exploitation probability is low (0.26%, 49th percentile) despite the 9.8 CVSS, indicating the headline severity is not yet matched by observed exploitation interest.

Technical ContextAI

GLib is the foundational C library underpinning GNOME, GTK, GIO, D-Bus client tooling, and countless Linux applications and daemons. The defect resides in the GVariant parser - GVariant is GLib's strongly-typed serialization format used heavily by GSettings/dconf, D-Bus message marshalling, and IPC. The CWE is recorded as CWE-190 (Integer Overflow or Wraparound), while the description characterizes the concrete fault as a buffer-underflow during processing of crafted input strings; the typical mechanism is an arithmetic miscalculation of an offset or length that underflows, causing reads/writes before the intended buffer and corrupting the heap. Affected CPEs identify gnome:glib (all versions until patched) as the upstream component, with downstream exposure tracked against Red Hat Enterprise Linux 7.0, 8.0, 9.0, and 10.0.

RemediationAI

Apply your distribution's patched GLib package: on Red Hat Enterprise Linux install the updates from RHSA-2026:7461, RHSA-2026:15953, RHSA-2026:15969, or RHSA-2026:15971 as applicable to your major version (https://access.redhat.com/security/cve/CVE-2025-14087), and on SUSE apply the corresponding SUSE-SU-2025:4441/4442/4504 or 2026-series advisories (e.g. https://www.suse.com/support/update/SUSE-SU-2025:4441/). A vendor patch is available, but the exact fixed upstream GLib version was not supplied in the input and should be read from the errata. After upgrading the shared library, restart or reboot affected services since long-running daemons keep the old GLib mapped in memory until restarted. Where immediate patching is impossible, the only meaningful compensating control is to restrict exposure of services that deserialize untrusted GVariant/D-Bus/GSettings input from the network - block or firewall network endpoints that pass external data into GLib parsers and avoid feeding untrusted serialized GVariant blobs to applications; note this may break legitimate IPC or remote functionality and is a stopgap, not a fix.

More in Glib

View all
CVE-2024-52533 CRITICAL POC
9.8 Nov 11

gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant buffer overflow because SOCKS4_CON
CVE-2018-16428 CRITICAL POC
9.8 Sep 04

In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference. Rated critical sev
CVE-2020-35457 HIGH POC
7.8 Dec 14

GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entri
CVE-2025-13601 HIGH POC
7.7 Nov 26

Heap-based buffer overflow in GLib's g_escape_uri_string() function allows local attackers to achieve high-integrity and
CVE-2021-27219 HIGH POC
7.5 Feb 15

An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. Rated high severity (CVSS 7.5), this vulne
CVE-2018-16429 HIGH POC
7.5 Sep 04

GNOME GLib 2.56.1 has an out-of-bounds read vulnerability in g_markup_parse_context_parse() in gmarkup.c, related to utf
CVE-2020-6750 MEDIUM POC
5.9 Jan 09

GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting v
CVE-2019-12450 CRITICAL
9.8 May 29

file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while

CVE-2021-28153 MEDIUM POC
5.3 Mar 11

An issue was discovered in GNOME GLib before 2.66.8. Rated medium severity (CVSS 5.3), this vulnerability is remotely ex
CVE-2024-34397 MEDIUM POC
5.2 May 07

An issue was discovered in GNOME GLib before 2.78.5, and 2.79.x and 2.80.x before 2.80.1. Rated medium severity (CVSS 5.
CVE-2026-58016 CRITICAL
9.1 Jun 30

Denial of service in GNOME GLib (versions before 2.88.1) arises when g_dbus_node_info_new_for_xml() parses malformed D-B
CVE-2026-58014 HIGH
8.6 Jun 30

Denial of service (and a 1-byte out-of-bounds read) in GNOME GLib before 2.88.1 arises from an off-by-one error in g_key

Same weakness CWE-190 – Integer Overflow or Wraparound

View all
CVE-2013-2729 CRITICAL POC
9.8
CVE-2015-8651 HIGH
8.8
CVE-2012-5054 HIGH POC
8.8
CVE-2014-0569 CRITICAL POC
9.3
CVE-2017-3599 HIGH POC
7.5
CVE-2017-7529 HIGH
7.5
CVE-2016-1010 HIGH
8.8
CVE-2013-3940 CRITICAL
9.3

Same technique Denial Of Service

View all
CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/manager/4.3/proxy-httpd:4.3.16.2.9.73.4 Container suse/sle-micro/base-5.5:2.0.4-5.8.230 Container suse/sle-micro/kvm-5.5:2.0.4-3.5.441 Image SLES15-SP4-BYOS Image SLES15-SP4-BYOS-Azure Image SLES15-SP4-BYOS-EC2 Image SLES15-SP4-BYOS-GCE Image SLES15-SP4-HPC-BYOS Image SLES15-SP4-HPC-BYOS-Azure Image SLES15-SP4-HPC-BYOS-EC2 Image SLES15-SP4-HPC-BYOS-GCE Image SLES15-SP4-HPC-EC2 Image SLES15-SP4-HPC-GCE Image SLES15-SP4-Hardened-BYOS Image SLES15-SP4-Hardened-BYOS-Azure Image SLES15-SP4-Hardened-BYOS-EC2 Image SLES15-SP4-Hardened-BYOS-GCE Image SLES15-SP4-Manager-Server-4-3-BYOS Image SLES15-SP4-Manager-Server-4-3-BYOS-Azure Image SLES15-SP4-Manager-Server-4-3-BYOS-EC2 Image SLES15-SP4-Manager-Server-4-3-BYOS-GCE Image SLES15-SP4-Micro-5-3-BYOS Image SLES15-SP4-Micro-5-3-BYOS-Azure Image SLES15-SP4-Micro-5-4-BYOS Image SLES15-SP4-Micro-5-4-BYOS-Azure Image SLES15-SP5-Azure-3P Image SLES15-SP5-Azure-Basic Image SLES15-SP5-Azure-Standard Image SLES15-SP5-BYOS-Azure Image SLES15-SP5-BYOS-EC2 Image SLES15-SP5-BYOS-GCE Image SLES15-SP5-EC2 Image SLES15-SP5-GCE Image SLES15-SP5-HPC-Azure Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-Hardened-BYOS-Azure Image SLES15-SP5-Hardened-BYOS-EC2 Image SLES15-SP5-Hardened-BYOS-GCE Image SLES15-SP5-Micro-5-5 Image SLES15-SP5-Micro-5-5-Azure Image SLES15-SP5-Micro-5-5-BYOS Image SLES15-SP5-Micro-5-5-BYOS-Azure Image SLES15-SP5-Micro-5-5-EC2 Affected
Container suse/manager/4.3/proxy-salt-broker:4.3.16.2.9.63.4 Affected
Container suse/manager/5.0/x86_64/proxy-httpd:latest Container suse/manager/5.0/x86_64/server:latest Container suse/multi-linux-manager/5.1/x86_64/proxy-httpd:5.1.2.8.15.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker:5.1.2.9.13.2 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.2.8.13.2 Image SLES15-SP6 Image SLES15-SP6-Azure-3P Image SLES15-SP6-Azure-Basic Image SLES15-SP6-Azure-Standard Image SLES15-SP6-BYOS Image SLES15-SP6-BYOS-Azure Image SLES15-SP6-BYOS-EC2 Image SLES15-SP6-BYOS-GCE Image SLES15-SP6-CHOST-BYOS Image SLES15-SP6-CHOST-BYOS-Aliyun Image SLES15-SP6-CHOST-BYOS-Azure Image SLES15-SP6-CHOST-BYOS-EC2 Image SLES15-SP6-CHOST-BYOS-GCE Image SLES15-SP6-CHOST-BYOS-GDC Image SLES15-SP6-CHOST-BYOS-SAP-CCloud Image SLES15-SP6-EC2 Image SLES15-SP6-EC2-ECS-HVM Image SLES15-SP6-GCE Image SLES15-SP6-HPC Image SLES15-SP6-HPC-Azure Image SLES15-SP6-HPC-BYOS Image SLES15-SP6-HPC-BYOS-Azure Image SLES15-SP6-HPC-BYOS-EC2 Image SLES15-SP6-HPC-BYOS-GCE Image SLES15-SP6-HPC-EC2 Image SLES15-SP6-HPC-GCE Image SLES15-SP6-Hardened-BYOS Image SLES15-SP6-Hardened-BYOS-Azure Image SLES15-SP6-Hardened-BYOS-EC2 Image SLES15-SP6-Hardened-BYOS-GCE Image SLES15-SP7-Azure-3P Image SLES15-SP7-Azure-Basic Image SLES15-SP7-Azure-Standard Image SLES15-SP7-BYOS-Azure Image SLES15-SP7-BYOS-EC2 Image SLES15-SP7-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-Aliyun Image SLES15-SP7-CHOST-BYOS-Azure Image SLES15-SP7-CHOST-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-GDC Image SLES15-SP7-CHOST-BYOS-SAP-CCloud Image SLES15-SP7-EC2 Image SLES15-SP7-EC2-ECS-HVM Image SLES15-SP7-GCE Image SLES15-SP7-GCE-3P Image SLES15-SP7-HPC-Azure Image SLES15-SP7-HPC-BYOS-Azure Image SLES15-SP7-HPC-BYOS-EC2 Image SLES15-SP7-HPC-BYOS-GCE Image SLES15-SP7-Hardened-BYOS-Azure Image SLES15-SP7-Hardened-BYOS-EC2 Image SLES15-SP7-Hardened-BYOS-GCE Image proxy-httpd-image Image server-image Affected
Container suse/manager/5.0/x86_64/proxy-salt-broker:latest Container suse/manager/5.0/x86_64/server-attestation:latest Container suse/manager/5.0/x86_64/server-hub-xmlrpc-api:latest Container suse/multi-linux-manager/5.1/x86_64/server-hub-xmlrpc-api:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-saline:5.1.2.9.13.1 Image proxy-salt-broker-image Image server-hub-xmlrpc-api-image Image server-saline-image Affected
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.115 Container suse/sl-micro/6.0/base-os-container:2.1.3-7.81 Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.102 Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.117 Image SL-Micro Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Affected

Share

CVE-2025-14087 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy