What is CVE-2022-35405?

CVE-2022-35405 is a critical-severity vulnerability in Zohocorp Manageengine Access Manager Plus, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-07-19.

How severe is CVE-2022-35405?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-35405 known to be exploited?

Yes. CVE-2022-35405 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-22), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.

Deserialization in Zohocorp Manageengine Access Manager Plus

CVE-2022-35405

Zoho ManageEngine Password Manager Pro before 12101 and PAM360 before 5510 are vulnerable to unauthenticated remote code execution. (This also affects ManageEngine Access Manager Plus before 4303 with authentication.)

Vulnerability class: Insecure Deserialization

Published 2022-07-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.999 (100.0th percentile), scored 2026-10-06.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Zohocorp Manageengine Access Manager Plus — versions 4.3
Zohocorp Manageengine Pam360 — versions 5.5
Zohocorp Manageengine Password Manager Pro — versions 12.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-09-22. 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: 2022-10-13.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

www.manageengine.com/products/passwordmanagerpro/advisory/cve-2022-35405.html (Patch, Vendor Advisory)
packetstormsecurity.com/files/167918/Zoho-Password-Manager-Pro-XML-RPC-Java-Des… (Exploit, VDB Entry, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-35405?: CVE-2022-35405 is a critical-severity vulnerability in Zohocorp Manageengine Access Manager Plus, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-07-19.
How severe is CVE-2022-35405?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-35405 known to be exploited?: Yes. CVE-2022-35405 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-22), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.