NULL pointer dereference in Red Hat Enterprise Linux 10

CVE-2025-4476

A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically crafted domain parameter withi…

EPSS: 0.003 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-4476?
CVE-2025-4476 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under NULL Pointer Dereference. CVSS score: 4.3/10. Published 2025-05-16.
How severe is CVE-2025-4476?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2025-4476 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.