CVE-2024-34161

5.3 MEDIUM 0.9% exploit odds Fix listed Memory safety Library

What it is

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2024-05-29 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 07:33 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.9% in the next 30 days (EPSS).
Severity: 5.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2024-05-29 16:15 UTC
Last modified: 2026-06-17 07:33 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-416 · Use after free
Record status: Analyzed

Affected

f5 nginx Open Source < 1.26.1
f5 nginx Plus r30
f5 nginx Plus r31
Fedoraproject Fedora 39
Fedoraproject Fedora 40

Attack profile CVSS 3.1 · 5.3

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2024-34161.md and follow it. Check whether this project is affected by CVE-2024-34161. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record