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PatchSiren cyber security CVE debrief

CVE-2026-49304 Huawei CVE debrief

A permission control vulnerability exists in the device key management module. Successful exploitation may affect availability. The CVE record was published on 2026-08-17T09:17:30.433Z and has not been modified since then. The NVD entry is currently Deferred. This vulnerability impacts device availability and requires review of access controls. The vulnerability class is related to permission control issues in device key management. The likely operational impact is related to availability. The source confidence is based on official records from the CVE Program and NVD. Limited information is available on affected products and vendor remediation efforts, so review context is necessary.

Vendor
Huawei
Product
HarmonyOS
CVSS
MEDIUM 6.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-17
Original CVE updated
2026-08-26
Advisory published
2026-08-17
Advisory updated
2026-08-26

Who should care

Security teams responsible for device key management and availability should be aware of CVE-2026-49304. Reviewing and updating access controls may be necessary to mitigate potential impacts. Teams managing device configurations and monitoring system availability need to assess their exposure and plan for mitigations.

Technical summary

The CVE-2026-49304 vulnerability is a permission control issue in the device key management module with a CVSS score of 6.2 and MEDIUM severity. Successful exploitation could affect availability. The vulnerability's details are based on information from the CVE Program and NVD. Affected product deployments need to be identified and verified for potential exposure.

Defensive priority

Medium priority due to potential availability impact.

Recommended defensive actions

  • Verify device key management module configurations
  • Review and update access controls
  • Monitor for potential availability impacts
  • Perform vulnerability scanning
  • Implement compensating controls

Evidence notes

The CVE-2026-49304 record indicates a permission control vulnerability in a device key management module with a CVSS score of 6.2 and MEDIUM severity. Official records from the CVE Program and NVD provide details. Limited information is available on affected products and vendor remediation efforts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49304 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49304

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

  • CVE-2026-49304 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49304

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

Supplemental references

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.