Security readout for executives and security teams
Plain-English summary
CVE-2021-26845 lets an unauthenticated person view eSOMS report data if they discover a report URL. The main business risk is confidential operational or compliance information disclosure, not system takeover or outage.
Executive priority
Prioritize remediation for eSOMS systems containing sensitive operational, compliance, or personnel data, especially if reachable beyond a tightly controlled internal network.
Technical view
Hitachi ABB Power Grids eSOMS report access control could expose report data over the network with low attack complexity, no credentials, and no user interaction. CVSS 3.1 is 7.5, driven by high confidentiality impact with no integrity or availability impact stated.
Likely exposure
Exposure is likely limited to organizations running Hitachi ABB Power Grids eSOMS 6.0, 6.1, or 6.3 below the versions named in the CVE description.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The vulnerability is still serious because URL discovery alone may allow unauthorized report access.
Researcher notes
The provided CVE data names affected version ranges and a confidentiality-only network attack path. It does not provide CWE mapping, exploit details, or independent exploitation confirmation. Treat missing details as unknown rather than inferred.
Mitigation direction
- Upgrade eSOMS 6.0 to 6.0.4.2.2 or later where applicable.
- Upgrade eSOMS 6.1 to 6.1.4 or later where applicable.
- Upgrade affected 6.3 deployments per ABB vendor guidance.
- Restrict eSOMS and report URLs to trusted users and networks.
- Review vendor advisory guidance before relying on compensating controls.
Validation and detection
- Inventory eSOMS deployments and record exact product versions.
- Confirm whether versions fall below the fixed thresholds in the CVE description.
- Review report access logs for unexpected or unauthenticated access patterns.
- Verify report URLs are not exposed through portals, emails, or indexed systems.
- Confirm upgraded instances no longer allow unauthenticated report retrieval.
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.
CVE-2021-26845 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8942&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.