CVE-2025-4373

low-risk
Published 2025-05-06

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.

Do I need to act?

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0.74% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.8/10 Medium
NETWORK / HIGH complexity
22
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal