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PatchSiren cyber security CVE debrief

CVE-2026-49879 Google CVE debrief

CVE-2026-49879 is a high-severity vulnerability in Google Android, with a CVSS score of 8.8. An integer overflow in multiple functions of rw_t3t.cc could lead to remote code execution with no additional execution privileges needed. User interaction is not required for exploitation. The CVE was published on 2026-09-08 and last modified on 2026-09-23.

Vendor
Google
Product
Android
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-23
Advisory published
2026-09-08
Advisory updated
2026-09-23

Who should care

Defenders responsible for Google Android systems, particularly those exposed to remote interactions, should assess their exposure and prioritize patching.

Why it matters

CVE-2026-49879 is a high-severity vulnerability in Google Android that could lead to remote code execution. Defenders should prioritize verifying and applying patches for affected versions, particularly for systems exposed to remote interactions.

  • Remote code execution with no additional execution privileges needed
  • Potential for exploitation without user interaction
  • Need for verification and patching of affected Google Android versions
  • Possible impact on systems exposed to remote interactions

Technical summary

An integer overflow in multiple functions of rw_t3t.cc in Google Android could lead to remote code execution with no additional execution privileges needed. User interaction is not required for exploitation. The vulnerability affects various versions of Google Android, including 14.0, 15.0, 16.0, and 17.0.

Defensive priority

Defenders should prioritize verifying and applying patches for affected Google Android versions, particularly for systems exposed to remote interactions.

Recommended defensive actions

  • Verify and apply patches for affected Google Android versions
  • Review and update inventory of Android systems exposed to remote interactions
  • Monitor for and respond to potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score and affected versions. However, specific version details and remediation steps require verification from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49879 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49879

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

  • CVE-2026-49879 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49879

    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.