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Medium 4.8Published May 6, 2025
CVE-2025-4373Glib: buffer underflow on glib through glib/gstring.c via function g_string_insert_unichar
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 26 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- Weakness (CWE)
- CWE-124
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Not yet received
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:2.80.4-4.el10_0.6 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_aus | from 0:2.56.4-8.el8_2.2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:2.56.4-10.el8_4.2 not affected | CNA record |
from 0:2.56.4-158.el8_6.2 not affected | CNA record | |
from 0:2.56.4-158.el8_6.2 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:2.68.4-14.el9_4.3 not affected | CNA record |
Red Hat Red Hat Insights proxy 1.5 redhat:insights_proxy | from 1.5.5-1754504343 not affected | CNA record |
Red Hat Red Hat OpenShift distributed tracing 3.6.0 redhat:openshift_distributed_tracing | from rhosdt-3.6-1753265330 not affected | CNA record |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XCH328 siemens:scalance_xch328 (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XCM324 siemens:scalance_xcm324 (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XCM328 siemens:scalance_xcm328 (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XCM332 siemens:scalance_xcm332 (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) siemens:scalance_xrh334_24_v_dc_8xfo_cc (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (230 V AC, 12xFO) siemens:scalance_xrm334_230_v_ac_12xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (230 V AC, 8xFO) siemens:scalance_xrm334_230_v_ac_8xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) siemens:scalance_xrm334_230v_ac_2x10g_24xsfp_8xsfp+ (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (24 V DC, 12xFO) siemens:scalance_xrm334_24_v_dc_12xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (24 V DC, 8xFO) siemens:scalance_xrm334_24_v_dc_8xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) siemens:scalance_xrm334_24v_dc_2x10g_24xsfp_8xsfp+ (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) siemens:scalance_xrm334_2x230_v_ac_12xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) siemens:scalance_xrm334_2x230_v_ac_8xfo (from the name) | before V3.3 | CISA ADP |
Siemens SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) siemens:scalance_xrm334_2x230v_ac_2x10g_24xsfp_8xsfp+ (from the name) | before V3.3 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
References
- https://access.redhat.com/errata/RHSA-2025:10855vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:11140vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:11327vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:11373vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:11374vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:11662vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:12275vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:13335vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:14988vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:14989vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:14990vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:14991vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2025-4373vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2364265issue-tracking, x-refsource-redhat
- https://gitlab.gnome.org/GNOME/glib/-/issues/3677
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