Security readout for executives and security teams
Plain-English summary
This vulnerability affects several WAVLINK router models and can let a logged-in attacker inject system commands through the NAS disk page. The public record rates it medium severity because exploitation needs authentication and user interaction, and the stated impact is limited confidentiality and integrity loss.
Executive priority
Handle this as a moderate network-edge device risk. It is not documented as actively exploited here, but routers are high-value footholds. Prioritize inventory, access restriction, and vendor firmware verification over emergency response unless exposure is internet-facing.
Technical view
CVE-2022-35518 is a CWE-77 command injection issue in nas.cgi, reached from /nas_disk.shtml. The cited parameters are User1Passwd and User1. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N, score 4.6. No affected firmware versions or vendor patch details are provided in the bundle.
Likely exposure
Exposure is most relevant where the listed WAVLINK models are deployed and their web administration or NAS disk functions are reachable by authenticated users. The sources name WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3, but do not provide firmware version ranges.
Exploitation context
The bundle does not show CISA KEV listing or other evidence of active exploitation. Public technical detail exists in a GitHub reference, but the CVSS vector indicates exploitation requires low privileges and user interaction. Treat internet-reachable management interfaces as higher risk.
Researcher notes
The public data is sparse: it identifies vulnerable parameters and endpoint context, but not firmware versions, patch availability, or confirmed exploitation. Validation should focus on model presence, reachable management surfaces, authentication controls, and vendor release notes rather than assumptions about all WAVLINK products.
Mitigation direction
- Check WAVLINK guidance and firmware releases for each listed model.
- Restrict router administration interfaces to trusted management networks only.
- Remove unnecessary remote access to the device web interface.
- Use strong, unique administrator credentials on affected devices.
- Replace or isolate devices if no vendor-supported update is available.
Validation and detection
- Inventory WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3 devices.
- Record firmware versions and compare them with vendor advisories when available.
- Confirm the web administration interface is not publicly reachable.
- Review access logs for unexpected authenticated access to NAS settings.
- Verify only trusted administrators can manage NAS-related configuration.
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-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-35518 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
- 4.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/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:R/S:U/C:L/I:L/A:N2.12.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.6MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/TyeYeah/othercveinfo/blob/main/wavlink/README.md#wavlink-router-ac1200-page-nas_diskshtml-command-injection-in-nascgiCVE 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.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.