How severe is CVE-2024-34364?

CVE-2024-34364 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-34364 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-34364?

CVE-2024-34364 affects Envoyproxy Envoy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-34364?

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

Does CVE-2024-34364 have an EU (EUVD) identifier?

Yes. CVE-2024-34364 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34737.

When was CVE-2024-34364 published?

CVE-2024-34364 was published on 2024-06-04 and last updated on 2026-06-17.

CVE-2024-34364

CVE-2024-34364 is a medium-severity vulnerability in Envoyproxy Envoy with a CVSS 3.x base score of 5.7. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-34737
Weakness: CWE-787
Affected product: Envoyproxy Envoy
Published: 2024-06-04
Last modified: 2026-06-17

Description

Envoy is a cloud-native, open source edge and service proxy. Envoy exposed an out-of-memory (OOM) vector from the mirror response, since async HTTP client will buffer the response with an unbounded buffer.

Frequently asked questions

What is CVE-2024-34364?: Envoy is a cloud-native, open source edge and service proxy. Envoy exposed an out-of-memory (OOM) vector from the mirror response, since async HTTP client will buffer the response with an unbounded buffer.
How severe is CVE-2024-34364?: CVE-2024-34364 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-34364 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-34364?: CVE-2024-34364 affects Envoyproxy Envoy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-34364?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-34364 have an EU (EUVD) identifier?: Yes. CVE-2024-34364 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34737.
When was CVE-2024-34364 published?: CVE-2024-34364 was published on 2024-06-04 and last updated on 2026-06-17.

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcj3-h7vf-fw26

Affected products (1)

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

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