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PatchSiren cyber security CVE debrief

CVE-2021-32030 ASUS CVE debrief

CVE-2021-32030 is an ASUS Routers improper authentication vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2025-06-02. Because CISA flags it as known exploited, organizations using affected ASUS router products should treat remediation as urgent and follow ASUS guidance or other CISA-recommended mitigations.

Vendor
ASUS
Product
Routers
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2025-06-02
Original CVE updated
2025-06-02
Advisory published
2025-06-02
Advisory updated
2025-06-02

Who should care

ASUS router administrators, network and security teams, MSPs managing ASUS networking gear, and organizations that rely on ASUS routers for internet edge or internal routing.

Technical summary

The supplied sources identify the issue as an improper authentication vulnerability in ASUS Routers. The CISA KEV entry indicates that it is known to be exploited in the wild, but the provided corpus does not include additional technical detail about the affected models, attack conditions, or impact scope beyond the product class and vulnerability name.

Defensive priority

High. CISA has placed the issue in the Known Exploited Vulnerabilities catalog, which means remediation should be prioritized for any environment running ASUS router products covered by vendor guidance.

Recommended defensive actions

  • Review the ASUS support guidance linked from the CISA KEV entry for the relevant router models.
  • Apply vendor-provided mitigations or updates as soon as possible.
  • If mitigations are unavailable for a deployed device, follow CISA guidance to discontinue use of the product.
  • Inventory ASUS router deployments so remediation can be verified and tracked.
  • Confirm that exposed management interfaces and administrative access controls follow vendor recommendations.

Evidence notes

This debrief is based only on the supplied CISA KEV metadata and official links. The corpus confirms the CVE title, the ASUS vendor/product mapping, KEV dateAdded 2025-06-02, dueDate 2025-06-23, and that CISA lists the issue as a known exploited vulnerability. No additional exploit mechanics, affected-model details, or impact characterization were provided in the supplied source set.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-32030 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-32030

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-32030 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-32030

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.