P4Verified

CVE-2025-11933: wolfssl from 5.8.2 (inclusive), before 5.8.4 (exclusive); +1 more affected products

CVE-2025-11933. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.00421 (percentile 0.34322), scored 2026-10-06.

Affected technology

wolfssl · from 5.8.2 (inclusive), before 5.8.4 (exclusive)
wolfssl

wolfSSL · 3.12.0 to before 5.8.4
wofSSL

Description’s affected range: 5.8.2 and earlier on multiple platforms

Component: wolfssl
File: src/tls.c

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

A remote unauthenticated attacker can potentially cause a denial-of-service via a crafted ClientHello message with duplicate CKS extensions. Vendor/CNA’s CVSS 4.0 assessment (base score 2.3/10) rates confidentiality and integrity impact as none; availability impact as low.

Published 2026-10-08 17:34:59.004832+00:00

CWE: CWE-20
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS: 0.00421 · percentile 0.3443 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-11933.html