CVE-2021-25246An improper access control information disclosure vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG SP1, and…
- 6.5MediumCVSS base score
- 1.8%Exploitation in 30 daysEPSS · top 22% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An improper access control information disclosure vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG SP1, and Worry-Free Business Security could allow an unauthenticated user to create a bogus agent on an affected server that could be used then make valid configuration queries.
Timeline
ID reserved
By trendmicro
- 20 days later
· 20 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
Trend Micro · Trend Micro Apex One
- affected 2019, SaaS
Trend Micro · Trend Micro OfficeScan
- affected XG SP1
Trend Micro · Trend Micro Worry-Free Business Security
- affected 10.0 SP1
References
References4
- https://success.trendmicro.com/solution/000284202 (opens in a new tab)x_refsource_MISCx_transferred
- https://success.trendmicro.com/solution/000284205 (opens in a new tab)x_refsource_MISCx_transferred
- https://success.trendmicro.com/solution/000284206 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-21-117/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-12157 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-25246)Record last updated .