What is CVE-2026-10512?

CVE-2026-10512 is a high-severity vulnerability in Wolfssl, classified under Incorrect Calculation. CVSS score: 7.5/10. Published 2026-06-25.

How severe is CVE-2026-10512?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wolfssl

CVE-2026-10512

The X25519 x86_64 assembly implementation fails to clear the most significant bit during the final modular reduction, so the computed result may not be fully reduced modulo the field prime 2^255 - 19. This can leave the field element in a…

EPSS: 0.003 (18.0th percentile) — read the EPSS interpretation.

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:N/A:H.

Affected products

Wolfssl — versions 5.6.4

Weakness classification (CWE)

CWE-682 — Incorrect Calculation

References

facts@wolfssl.com (Patch, patch, Issue Tracking)
facts@wolfssl.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-10512?: CVE-2026-10512 is a high-severity vulnerability in Wolfssl, classified under Incorrect Calculation. CVSS score: 7.5/10. Published 2026-06-25.
How severe is CVE-2026-10512?: High severity. CVSS v3 base score is 7.5 out of 10.