What is CVE-2026-0915?

CVE-2026-0915 is a high-severity vulnerability in Gnu Glibc, classified under Use of Uninitialized Resource. CVSS score: 7.5/10. Published 2026-01-15.

How severe is CVE-2026-0915?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Gnu Glibc

CVE-2026-0915

Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to…

EPSS: 0.006 (42.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Gnu Glibc
The Gnu C Library Glibc — versions 2.0

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

3ff69d7a-14f2-4f67-a097-88dee7810d18 (Broken Link)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List)

Frequently asked questions

What is CVE-2026-0915?: CVE-2026-0915 is a high-severity vulnerability in Gnu Glibc, classified under Use of Uninitialized Resource. CVSS score: 7.5/10. Published 2026-01-15.
How severe is CVE-2026-0915?: High severity. CVSS v3 base score is 7.5 out of 10.