CVE-2022-42905
CRITICAL 9.1EPSS 2.1%
In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)
- CVSS v3.1 NVD
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - EPSS
- 2.08% chance of exploitation in the next 30 days, 81st percentile
- Published
- 2022-11-06
- Updated
- 2025-05-02
Proof-of-concept exploits (1)
- mariodamas/benchmark-fuzzing0★ · 2026-06-17
Security advisories
- https://www.wolfssl.com/docs/security-vulnerabilities
- http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Re…
- http://seclists.org/fulldisclosure/2023/Jan/11
- wolfSSL/wolfssl/releases