EUVD-2026-74634
GHSA-w482-83jg-c7v7
Severity by source
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
Local-only TEE trustlet access with high privileges required; confidentiality-only impact per Samsung CVSS; unchanged scope (no subsequent-system impact).
Primary rating from Vendor (SamsungMobile).
CVSS VectorVendor: SamsungMobile
Lifecycle Timeline
2DescriptionCVE.org
Stack-based buffer overflow in PROCA trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.
AnalysisAI
Stack-based buffer overflow in Samsung's PROCA (Process Authenticator) TrustZone trustlet allows a local privileged attacker to write out-of-bounds memory, resulting in high-confidentiality impact against affected Samsung Mobile Devices running Android 14 through 17. The flaw is patched in SMR Sep-2026 Release 1. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires all of the following simultaneously: (1) local access to the physical or logically compromised device; (2) high-privilege execution context sufficient to communicate with the PROCA trustlet via the TEE interface (typically requires root or a system-level privileged process); (3) high attack complexity - crafted input must be specifically structured to trigger the overflow; and (4) specific prerequisite conditions (AT:P in CVSS 4.0) that must exist on the target device, though these are not further detailed in available source data. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is constrained by multiple compounding barriers. … 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 Samsung's September 2026 monthly security maintenance release (SMR Sep-2026 Release 1), which patches the PROCA trustlet across Android 14, 15, 16, and 17. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Samsung Mobile Devices
View allOut-of-bounds write in Samsung's Keymaster trustlet - a Trusted Execution Environment (TEE) component running in ARM Tru
Local privilege escalation to root in Samsung's DualDAR (Dual Data-at-Rest) encryption component affects Samsung mobile
Remote code execution in Samsung Mobile Devices arises from a heap-based buffer overflow in the JPEG decoding path of li
Remote code execution in the DNG (Adobe Digital Negative) image decoder within Samsung's Quram imaging library (libimage
Path traversal in Samsung's ImsService (IP Multimedia Subsystem Service) on Android 14 through 17 permits remote unauthe
Out-of-bounds write in libmdnie.so on Samsung Mobile Devices running Android 15, 16, and 17 enables local attackers to e
Local privilege escalation in Samsung Galaxy Watch allows unprivileged local attackers to execute arbitrary code with sy
Stack-based buffer overflow in libril_sem.so - Samsung's Radio Interface Layer shared library - enables privileged local
Improper input validation in Samsung's DualDAR kernel driver enables a local privileged attacker to escalate privileges
We need to produce a comprehensive analysis for CVE-2026-21047. Let's gather all provided data: CVE ID, description: "Ou
Google's Secure Folder prior to the March 2026 SMR release improperly exports Android application components, enabling l
Heap buffer overflow in Samsung KnoxVault trustlet (hwvault trusted application) on Samsung Mobile Devices prior to SMR
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today