CVE-2026-6412

MEDIUM
Published Jun 25, 2026 Modified Jun 27, 2026 CWE-327

Description

Certificate policy and RFC 8446 compliance concerns regarding the continued acceptance of SHA-1/MD5 in certificate processing.

CVSS v3.1 Score

4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0007
Probability of exploitation
0.00%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-327 CWE-327

Affected Products

Vendor Product
wolfssl wolfssl

References

Frequently Asked Questions

What is CVE-2026-6412? +
Certificate policy and RFC 8446 compliance concerns regarding the continued acceptance of SHA-1/MD5 in certificate processing. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2026-6412? +
CVE-2026-6412 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0007, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-6412? +
CVE-2026-6412 affects products from wolfssl, specifically: wolfssl. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-6412? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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