Vulnerability in Go Standard Library Crypto/x509

CVE-2025-22874

Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon.

Published · last modified .

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:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-22874: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-22874?
CVE-2025-22874 is a high-severity vulnerability in Go Standard Library Crypto/x509, classified under CWE-295: IMPROPER CERTIFICATE VALIDATION. CVSS score: 7.5/10. Published 2025-06-11.
How severe is CVE-2025-22874?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-22874 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.