CVE-2023-27856

Thinmanager vulnerability

CVSS

7.5

EPSS

77.2%

EPSS pct

100th

Exploited

No known

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.

Affected vendor

Rockwellautomation

Affected product

Thinmanager

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type (CWE)

CWE-22 — Path Traversal

Published

2023-03-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 77.2% reflects a high probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2023-27856

Confirm whether Rockwellautomation Thinmanager is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-27856.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-27856

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-27856 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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