Security readout for executives and security teams
Plain-English summary
CVE-2026-22624 is an access-control flaw in a HIKSEMI NAS model. A legitimate logged-in user may access or manipulate file resources belonging to other users without proper authorization. Business impact is mainly internal data privacy and governance risk, not unauthenticated takeover based on current public data.
Executive priority
Treat as a targeted remediation item for environments using this HIKSEMI NAS model. Prioritize higher if the device stores sensitive data, has many shared users, or is reachable from broad networks. There is no cited evidence of active exploitation.
Technical view
The issue is CWE-863 improper authorization affecting HIKSEMI HS-AFS-S1H1 version V5.10.10_Build_251126. CVSS 3.1 is 4.3: network exploitable, low complexity, requires low privileges, no user interaction, with low confidentiality impact and no stated integrity or availability impact.
Likely exposure
Exposure is limited to organizations running the affected HIKSEMI HS-AFS-S1H1 NAS firmware version and allowing authenticated users onto the service. Internet exposure increases risk, but the vulnerability still requires valid credentials according to the CVSS vector.
Exploitation context
The source bundle does not indicate active exploitation, public exploit availability, or CISA KEV listing. The practical concern is abuse by compromised, malicious, or over-permissioned authenticated users to access other users’ file resources.
Researcher notes
Public details are sparse. The CVE describes inadequate access control but does not provide endpoint details, proof-of-concept information, or named fixed versions in the provided sources. Avoid assuming broader HIKSEMI product impact without vendor confirmation.
Mitigation direction
- Check HIKSEMI’s security advisory for official firmware updates or configuration guidance.
- Inventory HS-AFS-S1H1 devices and identify firmware V5.10.10_Build_251126.
- Restrict NAS access to trusted networks or VPN where feasible.
- Review user accounts and remove unnecessary or stale access.
- Monitor NAS file access logs for unusual cross-user activity.
Validation and detection
- Confirm whether any HS-AFS-S1H1 devices are deployed.
- Record firmware versions and compare against V5.10.10_Build_251126.
- Review vendor advisory for affected versions and remediation status.
- Check whether NAS access is exposed beyond trusted users or networks.
- Audit recent file access events for unexpected user-to-user resource access.
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-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2026-22624 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.hiksemitech.com/en/hiksemi/support/security-advisory.htmlCVE reference
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.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.