What is CVE-2025-24946?

CVE-2025-24946 is a medium-severity vulnerability in Privateoctopus Picoquic, classified under Inefficient Algorithmic Complexity. CVSS score: 5.3/10. Published 2025-02-20.

How severe is CVE-2025-24946?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2025-24946 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Privateoctopus Picoquic

CVE-2025-24946

The hash table used to manage connections in picoquic before b80fd3f uses a weak hash function, allowing remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Privateoctopus Picoquic — versions 0

Weakness classification (CWE)

CWE-407 — Inefficient Algorithmic Complexity

Public proof-of-concept exploits

ncc-pbottine/QUIC-Hash-Dos-Advisory

References

Frequently asked questions

What is CVE-2025-24946?: CVE-2025-24946 is a medium-severity vulnerability in Privateoctopus Picoquic, classified under Inefficient Algorithmic Complexity. CVSS score: 5.3/10. Published 2025-02-20.
How severe is CVE-2025-24946?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-24946 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.