CVE-2024-34362

Name: CVE-2024-34362
Creator: NVD / NIST
Published: 2024-06-04T21:15:34.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2024-34362 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in `HttpConnectionManager` (HCM) with `EnvoyQuicServerStream` that can crash Envoy. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in `HttpConnectionManager` (HCM) with `EnvoyQuicServerStream` that can crash Envoy. An attacker can exploit this vulnerability by sending a request without `FIN`, then a `RESET_STREAM` frame, and then after receiving the response, closing the connection.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.59%

43.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Envoyproxy	Envoy	< 1.27.6
Envoyproxy	Envoy	>= 1.28.0, < 1.28.4
Envoyproxy	Envoy	>= 1.29.0, < 1.29.5
Envoyproxy	Envoy	>= 1.30.0, < 1.30.2

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-hww5-43gv-35jvExploit, Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-hww5-43gv-35jvExploit, Third Party Advisory

Timeline

Published: Jun 4, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-34362?

How severe is CVE-2024-34362?

CVE-2024-34362 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2024-34362?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-34362?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST