EUVD-2026-78967
GHSA-99mq-5f9f-76w5
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Local vector needing pre-existing System privileges (PR:H, AV:L, UI:N); C/I/A:H is generous but defensible as a TEE trust-boundary breach exposing secure-world secrets.
Primary rating from Vendor (Google_Devices).
CVSS VectorVendor: Google_Devices
Lifecycle Timeline
5DescriptionCVE.org
In Trusted Execution Environment, there is a possible memory corruption due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
AnalysisAI
Memory corruption in the Android Trusted Execution Environment (TEE) allows a local attacker who already holds System execution privileges to escalate privileges within the secure world by supplying improperly validated input to an affected secure-world interface. The flaw is local-only (AV:L), requires high pre-existing privileges (PR:H), and needs no user interaction (UI:N), yielding high confidentiality, integrity, and availability impact if the corrupted trusted application is reached; Google rates it 6.7 (Medium). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess System (PR:H) execution privileges on the local device (AV:L) - this is not remotely reachable and not exploitable by an unprivileged app. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a vendor-scored 6.7 (Medium) local privilege-escalation flaw in an Android Trusted Execution Environment (TEE), reported via the Pixel bulletin (2026-09-01). … 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 | Patch available per vendor advisory: apply the Android/Pixel security update covered by the bulletin dated 2026-09-01 at https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01, which is the authoritative fix reference for this CVE and includes the TEE hardening for affected builds; no standalone fix version string is published in the provided data, so confirm the exact patch level against that bulletin. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today