CVE-2025-14512: GNOME glib · Integer Overflow or Wraparound
Affects GNOME glibSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 2.86.3 when convenient.
Data as of 26 Oct 2026, 11:07 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.86.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade GNOME glib to 2.86.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GNOMEglib | Affected
| Fixed in
|
Red Hatredhat/glibpkg:rpm/redhat/glibOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released official security updates for glib2 packages in Red Hat Enterprise Linux 8 and 10 that address this vulnerability. Users should apply the updates as described in Red Hat advisories RHSA-2026:15953 and RHSA-2026:15969. No additional mitigation steps are required once the updates are applied.
Description
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.
References
- access.redhat.com/errata/RHSA-2026:15953 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:15969 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:15971 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19148 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19361 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19452 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19457 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19459 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19460 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19523 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19524 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19565 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19567 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:21275 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22634 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25096 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29197 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:7461 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-14512 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2421339 (opens in a new tab)
- gitlab.gnome.org/GNOME/glib/-/issues/3845 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:58981 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:72502 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:74674 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82304 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82322 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82347 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82354 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82372 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82857 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82888 (opens in a new tab)