How severe is CVE-2024-38536?

CVE-2024-38536 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-2024-38536 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-38536?

CVE-2024-38536 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-38536?

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-2024-38536 have an EU (EUVD) identifier?

Yes. CVE-2024-38536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37400.

When was CVE-2024-38536 published?

CVE-2024-38536 was published on 2024-07-11 and last updated on 2026-06-17.

CVE-2024-38536

CVE-2024-38536 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-37400
Weakness: CWE-476
Affected product: Oisf Suricata
Published: 2024-07-11
Last modified: 2026-06-17

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A memory allocation failure due to `http.memcap` being reached leads to a NULL-ptr reference leading to a crash. Upgrade to 7.0.6.

Frequently asked questions

What is CVE-2024-38536?: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A memory allocation failure due to `http.memcap` being reached leads to a NULL-ptr reference leading to a crash. Upgrade to 7.0.6.
How severe is CVE-2024-38536?: CVE-2024-38536 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-2024-38536 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-38536?: CVE-2024-38536 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-38536?: 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-2024-38536 have an EU (EUVD) identifier?: Yes. CVE-2024-38536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37400.
When was CVE-2024-38536 published?: CVE-2024-38536 was published on 2024-07-11 and last updated on 2026-06-17.

References

Affected products (1)

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

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