What is CVE-2024-58136?

CVE-2024-58136 is a critical-severity vulnerability in Yiiframework Yii, classified under CWE-424. CVSS score: 9.0/10. Published 2025-04-10.

How severe is CVE-2024-58136?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2024-58136 known to be exploited?

Yes. CVE-2024-58136 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-02), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.

Vulnerability in Yiiframework Yii

CVE-2024-58136

Yii 2 before 2.0.52 mishandles the attaching of behavior that is defined by an __class array key, a CVE-2024-4990 regression, as exploited in the wild in February through April 2025.

Published 2025-04-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.878 (99.8th percentile), scored 2026-10-17.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.878 · newest: 0.878 · change: 0.000

Affected products

Yiiframework Yii — versions 2

Weakness classification (CWE)

CWE-424

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-05-02. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-05-23.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

github.com/yiisoft/yii2/pull/20232 (Patch)
github.com/yiisoft/yii2/pull/20232 (Issue Tracking)
github.com/yiisoft/yii2/commit/40fe496eda529fd1d933b56a1022ec32d3cd0b12 (Patch)
github.com/yiisoft/yii2/compare/2.0.51...2.0.52 (Issue Tracking)
www.yiiframework.com/news/709/please-upgrade-to-yii-2-0-52 (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2024-58136?: CVE-2024-58136 is a critical-severity vulnerability in Yiiframework Yii, classified under CWE-424. CVSS score: 9.0/10. Published 2025-04-10.
How severe is CVE-2024-58136?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2024-58136 known to be exploited?: Yes. CVE-2024-58136 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-02), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.