CVE-2022-4066

Name: CVE-2022-4066
Creator: NVD / NIST
Published: 2022-11-19T19:15:10.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 1.06%

Last modified Jun 17, 2026

CVE-2022-4066 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. A vulnerability was found in davidmoreno onion. It has been rated as problematic. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

A vulnerability was found in davidmoreno onion. It has been rated as problematic. Affected by this issue is the function onion_response_flush of the file src/onion/response.c of the component Log Handler. The manipulation leads to allocation of resources. The name of the patch is de8ea938342b36c28024fd8393ebc27b8442a161. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-214028.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

1.06%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	All versions
Onion Project	Onion	< 2022-09-05

References

https://github.com/davidmoreno/onion/commit/de8ea938342b36c28024fd8393ebc27b8442a161Patch, Third Party Advisory
https://github.com/davidmoreno/onion/pull/308Exploit, Patch, Third Party Advisory
https://vuldb.com/?id.214028Third Party Advisory
https://github.com/davidmoreno/onion/commit/de8ea938342b36c28024fd8393ebc27b8442a161Patch, Third Party Advisory
https://github.com/davidmoreno/onion/pull/308Exploit, Patch, Third Party Advisory
https://vuldb.com/?id.214028Third Party Advisory

Timeline

Published: Nov 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-4066?

How severe is CVE-2022-4066?

CVE-2022-4066 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2022-4066?

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-2022-4066?

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

Scan your code now

Source: NVD / NIST