How severe is CVE-2024-25678?

CVE-2024-25678 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-25678 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-25678?

CVE-2024-25678 affects Litespeedtech Lsquic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-25678?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-25678 have an EU (EUVD) identifier?

Yes. CVE-2024-25678 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22994.

When was CVE-2024-25678 published?

CVE-2024-25678 was published on 2024-02-09 and last updated on 2026-06-17.

CVE-2024-25678

CVE-2024-25678 is a critical-severity vulnerability in Litespeedtech Lsquic with a CVSS 3.x base score of 9.8. 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-354.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-22994
Weakness: CWE-354
Affected product: Litespeedtech Lsquic
Published: 2024-02-09
Last modified: 2026-06-17

Description

In LiteSpeed QUIC (LSQUIC) Library before 4.0.4, DCID validation is mishandled.

Frequently asked questions

What is CVE-2024-25678?: In LiteSpeed QUIC (LSQUIC) Library before 4.0.4, DCID validation is mishandled.
How severe is CVE-2024-25678?: CVE-2024-25678 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-25678 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-25678?: CVE-2024-25678 affects Litespeedtech Lsquic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-25678?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-25678 have an EU (EUVD) identifier?: Yes. CVE-2024-25678 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22994.
When was CVE-2024-25678 published?: CVE-2024-25678 was published on 2024-02-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:litespeedtech:lsquic:*:*:*:*:*:*:*:*

More vulnerabilities in Litespeedtech Lsquic

CVE-2022-30592 — Critical (CVSS 9.8): liblsquic/lsquic_qenc_hdl.c in LiteSpeed QUIC (aka LSQUIC) before 3.1.0 mishandles MAX_TABLE_CAPACITY.
CVE-2025-54939 — Medium (CVSS 5.3): LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.

All CVEs affecting Litespeedtech Lsquic →

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