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PatchSiren cyber security CVE debrief

CVE-2026-0083 Google CVE debrief

CVE-2026-0083 is a critical vulnerability in the Android operating system, specifically affecting the NFC (Near Field Communication) component. The issue arises from a race condition in the `Nfc::eventCallback()` function, leading to a use-after-free vulnerability. This could allow an attacker to escalate privileges locally without requiring additional execution privileges or user interaction. The vulnerability has a CVSS score of 10, indicating the highest severity level. Android version 17.0 is affected, and users should apply patches immediately to mitigate the risk.

Vendor
Google
Product
Android
CVSS
CRITICAL 10
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-18
Advisory published
2026-06-17
Advisory updated
2026-06-18

Who should care

Android users, particularly those with devices running Android 17.0, should be aware of this critical vulnerability. IT administrators and security teams responsible for managing Android devices should prioritize patching to prevent potential local privilege escalation attacks.

Technical summary

The vulnerability is caused by a race condition in the `Nfc::eventCallback()` function, leading to a use-after-free issue. This allows an attacker to potentially access memory that has already been freed, enabling them to escalate privileges. The CVSS vector for this vulnerability is CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X, indicating a critical severity level.

Defensive priority

high

Recommended defensive actions

  • Apply the security patch for Android 17.0 as soon as possible.
  • Ensure that devices are updated to the latest version of Android.
  • Implement additional security measures, such as restricting access to sensitive components.
  • Monitor devices for suspicious activity related to NFC interactions.
  • Consider disabling NFC if not required for business operations.
  • Regularly review and update security configurations to prevent exploitation.
  • Educate users about the importance of keeping their devices up-to-date.

Evidence notes

The information provided is based on data from the National Vulnerability Database (NVD) and the Common Vulnerabilities and Exposures (CVE) database. The vulnerability details and CVSS score were obtained from these trusted sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-0083 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-0083

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

  • CVE-2026-0083 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-0083

    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.