How severe is CVE-2024-32663?

CVE-2024-32663 has a CVSS 3.x base score of 7.5, rated high 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 high.

Is CVE-2024-32663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-32663?

CVE-2024-32663 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-32663?

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

Does CVE-2024-32663 have an EU (EUVD) identifier?

Yes. CVE-2024-32663 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30454.

When was CVE-2024-32663 published?

CVE-2024-32663 was published on 2024-05-07 and last updated on 2026-06-17.

CVE-2024-32663

CVE-2024-32663 is a high-severity vulnerability in Oisf Suricata with a CVSS 3.x base score of 7.5. 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-30454
Weakness: CWE-770
Affected product: Oisf Suricata
Published: 2024-05-07
Last modified: 2026-06-17

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).

Frequently asked questions

What is CVE-2024-32663?: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).
How severe is CVE-2024-32663?: CVE-2024-32663 has a CVSS 3.x base score of 7.5, rated high 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 high.
Is CVE-2024-32663 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-32663?: CVE-2024-32663 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-32663?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-32663 have an EU (EUVD) identifier?: Yes. CVE-2024-32663 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30454.
When was CVE-2024-32663 published?: CVE-2024-32663 was published on 2024-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*

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