CVE-2026-41551: Siemens ROS# · Relative Path Traversal
Affects Siemens ROS#Source CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 2.2.2 as a priority.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.2.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Siemens ROS# to 2.2.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SiemensROS# | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict network access to ROS# instances and monitor for suspicious activity related to file access attempts. Avoid exposing vulnerable versions to untrusted networks.
Description
CVE-2026-41551 is a critical relative path traversal vulnerability in Siemens ROS# versions prior to 2.2.2. The issue arises from improper sanitization of user input, allowing remote attackers to access arbitrary files on affected devices. The vulnerability has a high CVSS score of 9.1, indicating significant confidentiality and integrity impact without requiring privileges or user interaction. There are no known exploits in the wild at this time.