Security readout for executives and security teams
Plain-English summary
This vulnerability could let someone with an old shared link access far more data than intended: all files owned by the user who created that link. The issue depends on a specific upgrade and stale-link condition, but the confidentiality impact is high if those conditions exist.
Executive priority
Treat as high priority for affected HCP-AW deployments because one exposed link could disclose an entire user file set. Prioritize environments with historical upgrades and broad external file sharing.
Technical view
CVE-2021-41573 affects Hitachi Content Platform Anywhere when links created on version 4.3.x or earlier remain active after deletion of the linked file or folder and upgrade to 4.4.5 or 4.5.0. A user possessing that link could browse and download all files of the original link creator.
Likely exposure
Exposure is most likely in HCP-AW environments upgraded from 4.3.x or earlier to 4.4.5 or 4.5.0 with undeleted, unexpired shared links whose target files or folders were later deleted.
Exploitation context
The CVE record rates this network-exploitable with no privileges or user interaction required once the attacker has the link. The provided sources do not report active exploitation, and the CVE is not listed as CISA KEV in the bundle.
Researcher notes
The affected product data in the bundle is incomplete, but the description identifies Hitachi Content Platform Anywhere. The vulnerable state is conditional, so validation should focus on upgrade history, link lifecycle records, and evidence of post-deletion link use.
Mitigation direction
- Check Hitachi HIRT advisory for version-specific guidance and fixes.
- Identify and revoke stale shared links created before upgrade.
- Expire links whose original file or folder was deleted.
- Review sharing policies for required link cleanup during deletion.
- Monitor for unusual downloads through shared-link access paths.
Validation and detection
- Confirm whether HCP-AW was upgraded from 4.3.x or earlier.
- Inventory links created before the upgrade and still active afterward.
- Find deleted files or folders with undeleted shared links.
- Review access logs for unexpected browsing or downloads via old links.
- Confirm current vendor advisory status for affected versions.
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-2021-41573 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/AC:L/AV:N/A:N/C:H/I:N/PR:N/S:U/UI: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/AC:L/AV:N/A:N/C:H/I:N/PR:N/S:U/UI:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AC:L/AV:N/A:N/C:H/I:N/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.hitachi.com/hirt/security/index.htmlCVE reference · x_refsource_MISC
- https://www.hitachi.com/hirt/hitachi-sec/2021/602.htmlCVE reference · x_refsource_MISC
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.