Vulnerability in The GNU C Library Glibc

CVE-2025-0395

When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.

EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-0395?
CVE-2025-0395 is a medium-severity vulnerability in The GNU C Library Glibc, classified under Incorrect Calculation of Buffer Size. CVSS score: 6.2/10. Published 2025-01-22.
How severe is CVE-2025-0395?
Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2025-0395 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.