CVE-2023-27856
CVSS v3
7.5
HIGH
EPSS Score
77.2 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In affected versions, path traversal exists when processing a message of type 8 in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker can exploit this vulnerability to download arbitrary files on the disk drive where ThinServer.exe is installed.
Technical details
- Published
- 2023-03-22
Frequently asked questions
What is CVE-2023-27856?
In affected versions, path traversal exists when processing a message of type 8 in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker can exploit this vulnerability to download arbitrary files on the disk drive where ThinServer.exe is installed.
Is CVE-2023-27856 actively exploited?
Active exploitation of CVE-2023-27856 has not been confirmed. Its EPSS score was 77.2% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-27856?
CVE-2023-27856 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2023-27856 affecting your environment?
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