What is CVE-2022-41922?

CVE-2022-41922 is a high-severity vulnerability in Yiiframework Yii, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2022-11-23.

How severe is CVE-2022-41922?

High severity. CVSS v3 base score is 8.1 out of 10.

Deserialization in Yiiframework Yii

CVE-2022-41922

`yiisoft/yii` before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize()` on arbitrary user input. This has been patched in 1.1.27.

Vulnerability class: Insecure Deserialization

Published 2022-11-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.001

Affected products

Yiiframework Yii
Yiisoft Yii — versions < 1.1.27

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

github.com/yiisoft/yii/security/advisories/GHSA-442f-wcwq-fpcf (Third Party Advisory)
github.com/yiisoft/yii/commit/ed67b7cc57216557c5c595c6650cdd2d3aa41c52 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-41922?: CVE-2022-41922 is a high-severity vulnerability in Yiiframework Yii, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2022-11-23.
How severe is CVE-2022-41922?: High severity. CVSS v3 base score is 8.1 out of 10.