CVE-2022-41922Network attack vector

Remote code execution via CDbCriteria object iteration

Published Nov 23, 2022 · Updated Apr 23, 2025

Unsafe deserialization in Yiisoft Yii before 1.1.27 allows remote attackers to execute arbitrary code through crafted serialized input. CDbCriteria::__wakeup() treats the deserialized params property as iterable without requiring an array, causing attacker-supplied objects to be traversed during wakeup. Exploitation requires a Yii application to pass arbitrary user input to unserialize(); successful exploitation runs code in the application process.

CVSS severity8.1
High
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in Yiisoft Yii before 1.1.27 allows remote attackers to execute arbitrary code through crafted serialized input. CDbCriteria::__wakeup() treats the deserialized params property as iterable without requiring an array, causing attacker-supplied objects to be traversed during wakeup. Exploitation requires a Yii application to pass arbitrary user input to unserialize(); successful exploitation runs code in the application process.

The record

CVE
CVE-2022-41922
Published
Nov 23, 2022
Updated
Apr 23, 2025
Vendor
Yiisoft
Product
Yii
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.1.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yiisoft · Yiiversion=< 1.1.27

Published CVSS scores

8.1GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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