Medium severity · published May 6, 2025
CVE-2025-4373
Glib: buffer underflow on glib through glib/gstring.c via function g_string_insert_unichar
4.8
CVSS
0.6%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.2 Advanced Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.8 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor
In the news
VulnerabilityHigh
Siemens SINEC OS
View CSAF
Summary
SINEC OS before V3.3 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
The following versions of Siemens SINEC OS are affected:
RUGGEDCOM RST2428P (6GK6242-6PA00) vers:intdot/<3.3 (CVE-2022-48174, CVE-2023-7256, CVE-2023-39810, CVE-2023-42363, CVE-2023-42364, CVE-2023-42365, CVE-2023-42366, CVE-2024-6197, CVE-2024-6874, CVE-2024-7264, CVE-2024-8006, CVE-2024-8096, CVE-2024-9681, CVE-2024-11053, CVE-2024-12718, CVE-2024-41996, CVE-2024-47619, CVE-2024-52533, CVE-2025-0167, CVE-2025-0665, CVE-2025-0725, CVE-2025-1390, CVE-2025-3360, CVE-2025-4138, CVE-2025-4330, CVE-2025-4373, CVE-2025-4435, CVE-2025-4516, CVE-2025-4517, CVE-2025-6141, CVE-2025-9086, CVE-2025-9230, CVE-2025-9231, CVE-2025-9232, CVE-2025-10148, CVE-2025-27587, CVE-2025-32433, CVE-2025-38084, CVE-2025-38085, CVE-2025-38086, CVE-2025-38345, CVE-2025-38350, CVE-2025-38498, CVE-2025-39839, CVE-2025-39841, CVE-2025-39846, CVE-2025-39853, CVE-2025-39860, CVE-2025-39864, CVE-2025-39865, CVE-2025-59375)
SCALANCE XCH328 (6GK5328-4TS01-2EC2) vers:intdot/<3.3 (CVE-2022-48174, CVE-2023-7256, CVE-2023-39810, CVE-2023-42363, CVE-2023-42364, CVE-2023-42365, CVE-2023-42366, CVE-2024-6197, CVE-2024-6874, CVE-2024-7264, CVE-2024-8006, CVE-2024-8096, CVE-2024-9681, CVE-2024-11053, CVE-2024-12718, CVE-2024-41996, CVE-2024-47619, CVE-2024-52533, CVE-2025-0167, CVE-2025-0665...
Feb 12, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4373
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-4373
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:10855
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:11140
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:11327
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:11373
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:11374
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:11662
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