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PatchSiren cyber security CVE debrief

CVE-2026-0133 Google CVE debrief

A vulnerability was discovered in the arm-smmu-v3.c file, specifically in the smmu_attach_dev function. This vulnerability is due to a missing permission check, which could allow an attacker to sign malicious Android Runtime bootclass artifacts. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Vendor
Google
Product
Android
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-16
Original CVE updated
2026-06-17
Advisory published
2026-06-16
Advisory updated
2026-06-17

Who should care

Android users and developers, security teams

Technical summary

The vulnerability is located in the smmu_attach_dev function of arm-smmu-v3.c. A missing permission check allows for the signing of malicious Android Runtime bootclass artifacts, potentially leading to local escalation of privilege.

Defensive priority

High

Recommended defensive actions

  • Apply patches or updates from the vendor as soon as they become available.
  • Use secure boot mechanisms to validate the authenticity of bootclass artifacts.
  • Implement additional security controls to monitor and restrict access to sensitive components.

Evidence notes

The CVE record was obtained from the official CVE website. The vulnerability details were retrieved from the NVD database.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-0133 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-0133

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

  • CVE-2026-0133 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-0133

    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.