CVE-2025-4947

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-4947.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-4947

OS impact

OSVersionStatusFixed in
arch archaffected
debian debianbookwormfixed0
debian debianbullseyefixed0
debian debianforkyfixed8.14.0-1
debian debiansidfixed8.14.0-1
debian debiantrixiefixed8.14.0-1
suse slesaffected

References

Verify integrity in audit chain (admin only). AS-IS.