Remote code execution via unverified rollback packages
Published Sep 19, 2022 · Updated Oct 21, 2025
Improper rollback validation in Trend Micro Apex One 2019 and SaaS allows remote authenticated users to execute code on Windows clients. Affected clients accept and download an unverified rollback package when instructed by the Apex One server. Apex One administration console access is required, and successful exploitation runs attacker-supplied code on managed endpoints.
Summary
What happened
Improper rollback validation in Trend Micro Apex One 2019 and SaaS allows remote authenticated users to execute code on Windows clients. Affected clients accept and download an unverified rollback package when instructed by the Apex One server. Apex One administration console access is required, and successful exploitation runs attacker-supplied code on managed endpoints.
The record
- CVE
- CVE-2022-40139
- Published
- Sep 19, 2022
- Updated
- Oct 21, 2025
- Vendor
- Trend Micro
- Product
- Trend Micro Apex One
- Classifications
- CWE-20, T1105
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 15, 2022Exploitation reportedCISA Known Exploited Vulnerabilities listing
- Sep 19, 2022CVE publishedPublication date reported by the CVE source.
- Oct 21, 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.
- Affected versionversion=2019 (on-prem) and SaaS
What conditions does exploitation require?
What is affected?
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.
Public exploit references
No public exploit references are available in this record.
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Reported exploitation
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
- Trend Micro observed exploitation attemptreported exploitation
Technologies
Your stack
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Your stack
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