7.5

CVE-2023-50781: m2crypto_project m2crypto Observable Discrepancy

CVSS: 7.5v3.1HighAnalyzed
AliasesGHSA-944j-8ch6-rf6xPYSEC-2026-1595UBUNTU-CVE-2023-50781
Published 05-02-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2023-50781 is a high (CVSS 7.5) Observable Discrepancy vulnerability in m2crypto_project m2crypto. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 65.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-02-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.12%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat2 products
Debian1 product
  • m2cryptoAll versions (No fix recorded) | < 0.40.1-3
M2crypto_project1 product
PyPI1 product
  • m2crypto≤ 0.40.1
Ubuntu1 product
  • m2cryptoAll versions (No fix recorded)

5 vendors · 6 products

References

13 links
Show all 13 references