Vulnerability in Red Hat Enterprise Linux 10
CVE-2025-4373
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (47.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
- Red Hat Enterprise Linux 10 — versions 0:2.80.4-4.el10_0.6
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:2.56.4-166.el8_10
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:2.56.4-8.el8_2.2
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:2.56.4-10.el8_4.2
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On — versions 0:2.56.4-10.el8_4.2
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — versions 0:2.56.4-158.el8_6.2
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service — versions 0:2.56.4-158.el8_6.2
- Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions — versions 0:2.56.4-158.el8_6.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2025:10855 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:11140 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:11327 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:11373 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:11374 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:11662 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:12275 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:13335 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:14988 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:14989 (vendor-advisory)
Frequently asked questions
- What is CVE-2025-4373?
- CVE-2025-4373 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Buffer Underwrite. CVSS score: 4.8/10. Published 2025-05-06.
- How severe is CVE-2025-4373?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2025-4373 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.