How severe is CVE-2022-30592?

CVE-2022-30592 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-2022-30592 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30592?

CVE-2022-30592 affects Litespeedtech Lsquic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-30592?

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.

When was CVE-2022-30592 published?

CVE-2022-30592 was published on 2022-05-11 and last updated on 2026-06-17.

CVE-2022-30592

CVE-2022-30592 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-476.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Litespeedtech Lsquic
Published: 2022-05-11
Last modified: 2026-06-17

Description

liblsquic/lsquic_qenc_hdl.c in LiteSpeed QUIC (aka LSQUIC) before 3.1.0 mishandles MAX_TABLE_CAPACITY.

Frequently asked questions

What is CVE-2022-30592?: liblsquic/lsquic_qenc_hdl.c in LiteSpeed QUIC (aka LSQUIC) before 3.1.0 mishandles MAX_TABLE_CAPACITY.
How severe is CVE-2022-30592?: CVE-2022-30592 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-2022-30592 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30592?: CVE-2022-30592 affects Litespeedtech Lsquic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-30592?: 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.
When was CVE-2022-30592 published?: CVE-2022-30592 was published on 2022-05-11 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Litespeedtech Lsquic

CVE-2024-25678 — Critical (CVSS 9.8): In LiteSpeed QUIC (LSQUIC) Library before 4.0.4, DCID validation is mishandled.
CVE-2025-54939 — Medium (CVSS 5.3): LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.

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