ABB Ability TM Operations Data Management Zenon Zenon Log Server file access control

published 2022-08-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37742

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

Relative Path Traversal vulnerability in ABB Zenon 8.20 allows the user to access files on the Zenon system and user also can add own log messages and e.g., flood the log entries. An attacker who successfully exploit the vulnerability could access the Zenon runtime activities such as the start and stop of various activity and the last error code etc.

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected products

ABB ABB Zenon

Classification

Weakness

CWE-23 Relative Path Traversal
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

search.abb.com /library/Download.aspx?DocumentID=2NGA001479&LanguageCode=en&DocumentPartId=&Action=Launch
vendor-advisory

Sources

CVE List CVE-2022-34836
NVD CVE-2022-34836

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Summary