CVE-2025-14512 | Glib: integer overflow in glib gio attribute escaping causes heap buffer overflow

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing malicious file or remote filesystem attribute values.

Published: 2025-12-11 Last update: 2026-06-02 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-14512 is rated Low Risk (30.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-14512

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-02 0.06% 0.04% -0.01%
2 2026-05-28 0.05% 0.06% +0.01%
3 2026-05-24 0.05%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-14512

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 3.6 [email protected]

Weakness enumeration for CVE-2025-14512

GitHub Security Advisory for CVE-2025-14512

GHSA-2p5v-p767-wqv5 · Severity: medium — A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service ...

OS Trackers for CVE-2025-14512

vendor priority summary link
alpine CVE-2025-14512: 1 source package rows (glib); 47 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 47. https://security.alpinelinux.org/vuln/CVE-2025-14512
debian not yet assigned CVE-2025-14512 not yet assigned priority: Debian including 1 source packages (glib2.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-14512
redhat medium https://access.redhat.com/security/cve/CVE-2025-14512
suse medium CVE-2025-14512 severity moderate: SUSE including 411 source package names (13.2-9.56:coreutils-9.4-5.1, 13.2-9.56:libglib-2_0-0-2.76.2-11.1, …), 2278 product×package rows across 316 product lines (Container suse/manager/4.3/proxy-httpd, Container suse/manager/4.3/proxy-salt-broker, … (316 product lines)): Fixed 2029, Known Affected 231, First Fixed 18. https://www.suse.com/security/cve/CVE-2025-14512/
ubuntu medium CVE-2025-14512 medium priority: Ubuntu including 1 source packages (glib2.0), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): released 5, needs-triage 4. https://ubuntu.com/security/CVE-2025-14512

Affected software / configurations for CVE-2025-14512

Vendor Product Version Raw CPE
gnome glib < 2.86.3 cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
redhat openshift 4.0 cpe:2.3:a:redhat:openshift:4.0:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
redhat enterprise_linux 10.0 cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

References for CVE-2025-14512

URL Tags
https://access.redhat.com/errata/RHSA-2026:15953
https://access.redhat.com/errata/RHSA-2026:15969
https://access.redhat.com/errata/RHSA-2026:15971
https://access.redhat.com/errata/RHSA-2026:19148
https://access.redhat.com/errata/RHSA-2026:19361
https://access.redhat.com/errata/RHSA-2026:19452
https://access.redhat.com/errata/RHSA-2026:19457
https://access.redhat.com/errata/RHSA-2026:19459
https://access.redhat.com/errata/RHSA-2026:19460
https://access.redhat.com/errata/RHSA-2026:19523
https://access.redhat.com/errata/RHSA-2026:19524
https://access.redhat.com/errata/RHSA-2026:19565
https://access.redhat.com/errata/RHSA-2026:19567
https://access.redhat.com/errata/RHSA-2026:21275
https://access.redhat.com/errata/RHSA-2026:22634
https://access.redhat.com/errata/RHSA-2026:7461
https://access.redhat.com/security/cve/CVE-2025-14512 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2421339 Issue Tracking Third Party Advisory
https://gitlab.gnome.org/GNOME/glib/-/issues/3845
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