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PatchSiren cyber security CVE debrief

CVE-2026-49882 Google CVE debrief

A memory safety issue due to a heap buffer overflow in rw_mfc_handle_read_op of rw_mfc.cc could lead to remote code execution with no additional execution privileges needed in Google Android versions 14.0, 15.0, 16.0, and 17.0. This vulnerability is particularly concerning as it can be exploited without user interaction, emphasizing the need for defenders to prioritize patching and monitoring. The affected versions of Google Android are 14.0, 15.0, 16.0, and 17.0. Defenders should assess exposure and apply patches from Google as part of their vulnerability management processes.

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 deployments, including those in charge of patch management, vulnerability assessment, and incident response.

Why it matters

CVE-2026-49882 is a heap buffer overflow vulnerability in Google Android that could lead to remote code execution. Defenders should prioritize verifying and applying patches, assessing exposure, and monitoring for potential exploitation attempts.

  • Remote code execution with no additional execution privileges needed
  • Potential for exploitation attempts without user interaction
  • Need for verification and application of patches from Google
  • Importance of monitoring for potential exploitation attempts

Technical summary

A heap buffer overflow vulnerability in rw_mfc_handle_read_op of rw_mfc.cc could lead to remote code execution with no additional execution privileges needed in Google Android versions 14.0, 15.0, 16.0, and 17.0. The vulnerability is particularly concerning as it can be exploited without user interaction. Defenders should prioritize verifying and applying patches from Google, assessing exposure in their Android deployments, and monitoring for potential exploitation attempts. The technical details of the vulnerability involve a heap buffer overflow in the rw_mfc.cc

Defensive priority

Defenders should prioritize verifying and applying patches from Google, assessing exposure in their Android deployments, and monitoring for potential exploitation attempts.

Recommended defensive actions

  • Verify and apply patches from Google for affected Android versions
  • Assess exposure in Android deployments
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 8.8 and potential impact on Google Android versions 14.0, 15.0, 16.0, and 17.0. The vulnerability is a heap buffer overflow in rw_mfc_handle_read_op of rw_mfc.cc, which could lead to remote code execution. Defenders should verify and apply patches from Google, assess exposure in their Android deployments, and monitor for potential exploitation attempts. The evidence is based on the CVE record

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49882 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49882

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

  • CVE-2026-49882 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49882

    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.