What is CVE-2026-11703?

CVE-2026-11703 is a high-severity vulnerability in Wolfssl, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-06-25.

How severe is CVE-2026-11703?

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

Auth bypass in Wolfssl

CVE-2026-11703

Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding check performed for ticket-based resumption. A cached session could be resumed under a different SNI/ALPN than originally negotiated and, wh…

Vulnerability class: Broken Authentication

EPSS: 0.002 (11.5th 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:H/A:N.

Affected products

Wolfssl — versions 3.15.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2026-11703?: CVE-2026-11703 is a high-severity vulnerability in Wolfssl, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-06-25.
How severe is CVE-2026-11703?: High severity. CVSS v3 base score is 7.5 out of 10.