CVE-2025-4476

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 33.7% of scored records. A rank, not a probability.

NVD base score

4.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

NVD analysis status

Deferred. NVD last modified this record on 2026-06-30.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-05-16 17:56Z1 YR AGO

Last updated

2026-06-30 10:40Z4 MO AGO

Reserved

2025-05-08

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

50da7e7d26081d689628007ab5ad7f480c9d833556e62b3c05ff010d9a0bb371

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-4476vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2366513https://bugzilla.redhat.com/show_bug.cgi?id=2366513issue-trackingx_refsource_REDHAT
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/issues/440
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/work_items/440exploit