CVE-2025-4373
What it is
A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-124
- Record status
- Deferred
Attack profile CVSS 3.1 · 4.8
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
References
- https://access.redhat.com/errata/RHSA-2025:10855
- https://access.redhat.com/errata/RHSA-2025:11140
- https://access.redhat.com/errata/RHSA-2025:11327
- https://access.redhat.com/errata/RHSA-2025:11373
- https://access.redhat.com/errata/RHSA-2025:11374
- https://access.redhat.com/errata/RHSA-2025:11662
- https://access.redhat.com/errata/RHSA-2025:12275
- https://access.redhat.com/errata/RHSA-2025:13335
- https://access.redhat.com/errata/RHSA-2025:14988
- https://access.redhat.com/errata/RHSA-2025:14989
- https://access.redhat.com/errata/RHSA-2025:14990
- https://access.redhat.com/errata/RHSA-2025:14991
- https://access.redhat.com/security/cve/CVE-2025-4373
- https://bugzilla.redhat.com/show_bug.cgi?id=2364265
- https://gitlab.gnome.org/GNOME/glib/-/issues/3677
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html