4.3

CVE-2024-45193: matrix olm

CVSS: 4.3v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2024-45193DEBIAN-CVE-2024-45193
Published 22-08-2024Last modified 10-09-2024
Open JSON

Vulnerability summary

CVE-2024-45193 is a medium (CVSS 4.3) vulnerability in matrix olm. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
GHSA-P2Q9-36VW-C468

Timeline

  1. 22-08-2024
    PublishedVulnerability first disclosed.
  2. 10-09-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Matrix libolm through 3.2.16. There is Ed25519 signature malleability due to lack of validation criteria (does not ensure that S < n). This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (soatok.blog)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • olmAll versions (No fix recorded)
Matrix1 product
Ubuntu1 product
  • olmAll versions (No fix recorded)

3 vendors · 3 products

References

7 links