SARA / Free Tools / CVE / CVE-2020-8599

CVE-2020-8599 — Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.

CVSS
EPSS
57.86% (top 1.90%)
CWE
Published
2020-03-18T00:30:44.000Z
Last modified
2025-10-21T23:35:47.710Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2021-11-03
BOD 22-01 due
2022-05-03
Ransomware use
Unknown

01What is this vulnerability?

Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.

02Affected products

VendorProductVersions
Trend MicroTrend Micro OfficeScan, Trend Micro Apex OneOfficeScan XG (12.0), Apex One 2019 (14.0)

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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