🛡️ CVE-2023-6936
🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-125 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2024-02-20
Updated 2026-06-08
Modified 2025-03-26

Affected Packages

Software From version Fixed in
wolfssl 5.6.6

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