CVE-2022-26871
CriticalExploitedPublic exploitAn arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.
Published Apr 4, 2022 · Updated Oct 21, 2025
Key Facts
Patch immediately- CVE-2022-26871 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Apex Central (Trendmicro), Apex One (Trendmicro), Trend Micro Apex Central.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 31, 2022. Public exploit code is available.
- EPSS estimates a 19% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
19%
Higher than 97.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-26871 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
An arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 31, 2022 | Apr 21, 2022 | Not reported |
| Industry KEV feed | Mar 31, 2022 | Apr 21, 2022 | Not reported |
| CIRCL KEV | Mar 31, 2022 | Apr 21, 2022 | Not reported |
| ENISA EUVD | Mar 31, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Apex CentralTrendmicro | 2019 | n/a |
| Apex OneTrendmicro | See advisory | n/a |
| Trend Micro Apex Central | >= 2019 (on-premise), SaaS | n/a |
Timeline
Added to CISA KEV
Mar 31, 2022
Added to Industry KEV feed
Mar 31, 2022
Added to CIRCL KEV
Mar 31, 2022
Added to ENISA EUVD
Mar 31, 2022
Publicly disclosed
Apr 4, 2022
Last updated
Oct 21, 2025
Weakness Type
- CWE-345 Insufficient Verification of Data Authenticity
References
- advisoryhttps://appweb.trendmicro.com/supportNews/NewsDetail.aspx?id=4435
- advisoryhttps://jvn.jp/vu/JVNVU99107357
- advisoryhttps://unsplash.com/@adrienolichon
- advisoryhttps://www.bleepingcomputer.com/news/security/trend-micro-fixes-actively-exploited-remote-code-execution-bug/
- advisoryhttps://www.itsecuritynews.info/trend-micro-patches-apex-central-zero-day-exploited-in-targeted-attacks/
FAQ
Common Questions.
An arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.
Affected: Apex Central (Trendmicro) versions 2019; Apex One (Trendmicro); Trend Micro Apex Central versions >= 2019 (on-premise), SaaS. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 31, 2022.
Yes. It was added on Mar 31, 2022 with a federal remediation due date of Apr 21, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2022-26871 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo