Cross Site Request Forgery (CSRF) in Hitachi Energy’s MSM Product

published 2022-07-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27514

cvss: 5.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits: 0; none known

A vulnerability exists in the HTTP web interface where the web interface does not sufficiently verify if a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This cause a Cross Site Request Forgery (CSRF), which if exploited could lead an attacker to gain unauthorized access to the web application and perform an unwanted operation on it without the knowledge of the legitimate user. An attacker, who successfully makes an MSM user who has already established a session to MSM web interface clicks a forged link to the MSM web interface, e.g., link is sent per E-Mail, could perform harmful command on MSM through its web server interface. This issue affects: Hitachi Energy MSM V2.2 and prior versions.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-277-02 updated 2022-10-04 cvss 5.0

Hitachi Energy Modular Switchgear Monitoring (MSM)

Hitachi Energy MSM <= 2.2
affected: vendor fix, mitigation “Hitachi Energy recommends security practices and firewall configurations to help protect a network from attacks originating outside the network” search.abb.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Hitachi Energy MSM

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

search.abb.com /library/Download.aspx?DocumentID=8DBD000085&LanguageCode=en&DocumentPartId=&Action=Launch
mitigation, vendor-advisory

Sources

CVE List CVE-2021-40335
NVD CVE-2021-40335

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.

Summary