EUVD-2026-73985
GHSA-3hvq-7gxx-fgjf
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low privileges needed to invoke NFC T3T code path; no user interaction required; full C/I/A impact upon successful privilege escalation.
Primary rating from Vendor (android).
CVSS VectorVendor: android
Lifecycle Timeline
6DescriptionCVE.org
In multiple functions of rw_t3t.cc, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
AnalysisAI
Local privilege escalation in Android's NFC Type 3 Tag (T3T) reader/writer component affects Android 14 through 17, including the Android 16 QPR2 branch. Multiple functions in rw_t3t.cc contain an integer overflow that leads to an out-of-bounds write, enabling a low-privileged local process to gain full system-level access without any user interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a process executing locally on the device with at least low-level (PR:L) privileges-an installed application is sufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) score accurately reflects a significant but local-only escalation: an attacker must already have a foothold on the device as a low-privileged process. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the September 2026 Android Security Bulletin patches, available via OTA update for supported devices or through the Android Open Source Project (AOSP) patch set linked at https://source.android.com/docs/security/bulletin/2026/2026-09-01. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: conduct an inventory of all Android 14-17 devices across your enterprise endpoints and assess which devices handle business-critical functions or sensitive data. …
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Privilege Escalation
View allShare
External POC / Exploit Code
Leaving vuln.today