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CVE-2025-24946

MEDIUM
5.3
CVSS Score
Published: February 20, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 08:59 AM UTC
1 product affected across 1 vendorPicoquic

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Picoquic· Privateoctopus
60%
v < b80fd3f5903279ae3e7714ee4109363d9ab4491a

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: [email protected]
https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
Source: [email protected]
https://github.com/private-octopus/picoquic/commit/b80fd3f5903279ae3e7714ee4109363d9ab4491a

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMmitre
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-407

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