What is CVE-2025-29606?

CVE-2025-29606 is a medium-severity vulnerability in Libp2p Py-Libp2p, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2025-07-14.

How severe is CVE-2025-29606?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Libp2p Py-Libp2p

CVE-2025-29606

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

Published 2025-07-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (23.8th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Libp2p Py-Libp2p — versions 0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

Frequently asked questions

What is CVE-2025-29606?: CVE-2025-29606 is a medium-severity vulnerability in Libp2p Py-Libp2p, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2025-07-14.
How severe is CVE-2025-29606?: Medium severity. CVSS v3 base score is 4.3 out of 10.