How severe is CVE-2025-24946?

CVE-2025-24946 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-24946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-24946?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-24946 have an EU (EUVD) identifier?

Yes. CVE-2025-24946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4633.

When was CVE-2025-24946 published?

CVE-2025-24946 was published on 2025-02-20 and last updated on 2026-06-17.

CVE-2025-24946

CVE-2025-24946 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-407.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4633
Weakness: CWE-407
Published: 2025-02-20
Last modified: 2026-06-17

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).

Frequently asked questions

What is 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).
How severe is CVE-2025-24946?: CVE-2025-24946 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-24946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-24946?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-24946 have an EU (EUVD) identifier?: Yes. CVE-2025-24946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4633.
When was CVE-2025-24946 published?: CVE-2025-24946 was published on 2025-02-20 and last updated on 2026-06-17.

References

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