Security readout for executives and security teams
Plain-English summary
Hitachi Energy MSM v2.2 and earlier has a CSRF flaw in its HTTP web interface. If a logged-in MSM user is tricked into clicking a forged link, the application may accept an unintended action as that user. The issue is not rated critical, but it matters where MSM is used for sensitive operational functions.
Executive priority
Treat this as a targeted operational-risk issue, not an internet-wide emergency based on the provided evidence. Prioritize if MSM supports critical environments or is reachable from broad user networks.
Technical view
The MSM web interface does not sufficiently verify that a valid request was intentionally submitted by the authenticated user. CVE data maps this to CWE-352 with CVSS 3.1 score 5.0: network attack vector, high complexity, no privileges required by the attacker, and required user interaction, with low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running Hitachi Energy MSM v2.2 or earlier, especially where the MSM HTTP web interface is reachable by users who browse email or external content while authenticated.
Exploitation context
The source describes a phishing-style CSRF scenario requiring an MSM user with an active web session to click a forged MSM link. The bundle does not show KEV listing or cited evidence of active exploitation.
Researcher notes
Evidence is limited to the CVE description and Hitachi Energy reference. The source names affected MSM v2.2 and prior versions but does not provide exploit code, confirmed exploitation, or specific remediation text in the supplied bundle.
Mitigation direction
- Identify all Hitachi Energy MSM deployments and versions.
- Check Hitachi Energy advisory guidance for supported updates or mitigations.
- Restrict MSM web interface access to trusted administrative networks.
- Train MSM users not to open unsolicited MSM links while logged in.
- Review session timeout and logout practices for MSM administrators.
Validation and detection
- Confirm whether MSM v2.2 or earlier is present.
- Verify who can reach the MSM HTTP web interface.
- Assess whether administrators browse email or web content during active MSM sessions.
- Review vendor advisory details before applying operational changes.
- Check logs for unexpected MSM actions tied to legitimate user sessions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-40335 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L1.63.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://search.abb.com/library/Download.aspx?DocumentID=8DBD000085&LanguageCode=en&DocumentPartId=&Action=LaunchCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.