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Fencer Vulns
critical 9.1

CVE-2023-0587 in the critical feed json

A file upload vulnerability in exists in Trend Micro Apex One server build 11110.

published 2023-02-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12627

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
59.6%
EPSS 59.6% chance of exploitation in 30 days, percentile 99.1%
public exploits
0
none known

Summary

A file upload vulnerability in exists in Trend Micro Apex One server build 11110. Using a malformed Content-Length header in an HTTP PUT message sent to URL /officescan/console/html/cgi/fcgiOfcDDA.exe, an unauthenticated remote attacker can upload arbitrary files to the SampleSubmission directory (i.e., \PCCSRV\TEMP\SampleSubmission) on the server. The attacker can upload a large number of large files to fill up the file system on which the Apex One server is installed.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
19 mo ago

Exploit prediction

59.59% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • tenable.com https://www.tenable.com/security/research/tra-2023-5 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

  • n/a Trend Micro Apex One

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.