4.3

CVE-2025-29606: libp2p py-libp2p

CVSS: 4.3v3.1MediumDeferred
AliasesGHSA-x8c6-gj59-6rx8PYSEC-2026-1536
Published 14-07-2025Last modified 14-07-2025
Open JSON

Vulnerability summary

CVE-2025-29606 is a medium (CVSS 4.3) vulnerability in libp2p py-libp2p. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.5% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-07-2025
    PublishedVulnerability first disclosed.
  2. 14-07-2025
    Last modifiedVulnerability information updated.

Description

py-libp2p before 0.2.3 allows a peer to cause a denial of service (resource consumption) via a large RSA key.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

+0.05 pp

From 0.33% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.38%

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

Libp2p1 product
PyPI1 product
  • libp2p< 0.2.3

2 vendors · 2 products

References

8 links