Is there a public exploit for CVE-2024-34363?

No public exploit for CVE-2024-34363 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2024-34363?

CVE-2024-34363 scores CVSS 7.5 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.67%.

What does CVE-2024-34363 affect?

CVE-2024-34363 affects envoyproxy envoy.

7.5 High

Envoy is a cloud-native, open source edge and service proxy.

CVE-2024-34363

Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash.

Assessment

CVSS: 7.5 (v3.1)
Severity: High
EPSS: 0.67% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 June 2024
Last updated: 5 November 2026
Affected: envoyproxy · envoy
Assigner: GitHub_M

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

At the source

EUVD (ENISA)

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-g979-ph9j-5gg4

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