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PatchSiren cyber security CVE debrief

CVE-2026-34860 Huawei CVE debrief

CVE-2026-34860 is an access control vulnerability in the memo module of Huawei HarmonyOS. Successful exploitation affects availability and confidentiality. The CVSS score is 4.1, indicating a medium severity vulnerability. This vulnerability impacts HarmonyOS versions 5.1.0 and 6.0.0. Defenders should verify exposure and assess potential impact on availability and confidentiality. The vulnerability allows unauthorized access to sensitive information and affects system availability. Huawei has provided vendor advisories for this issue.

Vendor
Huawei
Product
HarmonyOS
CVSS
MEDIUM 4.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-13
Original CVE updated
2026-10-26
Advisory published
2026-04-13
Advisory updated
2026-10-26

Who should care

Defenders responsible for Huawei HarmonyOS systems, particularly those using versions 5.1.0 and 6.0.0, should assess exposure and potential impact.

Why it matters

CVE-2026-34860 is a medium-severity access control vulnerability in the memo module of Huawei HarmonyOS. Defenders should verify exposure and assess potential impact on availability and confidentiality. The vulnerability affects HarmonyOS versions 5.1.0 and 6.0.0.

  • Verification of system configurations and versions is necessary to determine exposure.
  • Potential impact on availability and confidentiality requires assessment.

Technical summary

The vulnerability is in the memo module of Huawei HarmonyOS. It affects availability and confidentiality if exploited. The vulnerability allows unauthorized access to sensitive information. Huawei HarmonyOS versions 5.1.0 and 6.0.0 are affected. Defenders should prioritize verifying exposure and assessing potential impact on availability and confidentiality. The CVSS score is 4.1, indicating a medium severity vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on availability and confidentiality.

Recommended defensive actions

  • Verify exposure by checking system configurations and versions.
  • Assess potential impact on availability and confidentiality.
  • Apply vendor-provided patches or updates if available.

Evidence notes

The CVE record and NVD detail page provide official information about the vulnerability. Vendor advisories are available from Huawei. The vulnerability affects HarmonyOS versions 5.1.0 and 6.0.0. Defenders should verify system configurations and versions to determine exposure. The CVSS score of 4.1 indicates a medium severity vulnerability. There are no known exploits in the wild, but defenders should assess potential impact on availability and confidentiality.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-34860 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-34860

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

  • CVE-2026-34860 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34860

    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.