CVE-2022-46505

HIGH

MatrixSSL <4.5.1-open - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-46505. PoCs published by SmallTown123.

AI-analyzed exploit summary This repository provides a detailed writeup of CVE-2022-46505, a vulnerability in MatrixSSL 4.5.1-open and earlier where an all-zero MasterSecret can be misused to decrypt TLS communication data due to improper session ID validation.

Description

An issue in MatrixSSL 4.5.1-open and earlier leads to failure to securely check the SessionID field, resulting in the misuse of an all-zero MasterSecret that can decrypt secret data.

Exploits (1)

nomisec WRITEUP
by SmallTown123 · poc
https://github.com/SmallTown123/details-for-CVE-2022-46505

This repository provides a detailed writeup of CVE-2022-46505, a vulnerability in MatrixSSL 4.5.1-open and earlier where an all-zero MasterSecret can be misused to decrypt TLS communication data due to improper session ID validation.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: MatrixSSL 4.5.1-open and earlier
No auth needed
Prerequisites: Network access to a vulnerable MatrixSSL server · Ability to send crafted TLS session resumption requests
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References

Scores

CVSS v3 7.5
EPSS 0.0086
EPSS Percentile 53.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-665
Status published
Products (1)
matrixssl/matrixssl < 4.5.1
Published Jan 18, 2023
Tracked Since Feb 18, 2026