7.5

CVE-2022-46505: matrixssl Improper Initialization

Modified
Published 18-01-2023Last modified 04-04-2025

Vulnerability summary

CVE-2022-46505 is a high (CVSS 7.5) Improper Initialization vulnerability in matrixssl. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 58.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 18-01-2023
    PublishedVulnerability first disclosed.
  2. 04-04-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.86%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.86% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Details For Cve 2022 46505

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Matrixssl1 product

1 vendor · 1 product

References

2 links