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Android CVE-2025-20765

| EUVDEUVD-2025-200160 MEDIUM
Race Condition (CWE-362)
2025-12-02 security@mediatek.com
4.7
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

Can lead to privilege escalation, data corruption, or bypassing of security checks depending on the context of the race. With a CVSS score of 4.7 (MEDIUM), this represents a moderate risk.

Exploit ScenarioDerived

An attacker exploits a time-of-check-time-of-use (TOCTOU) window to modify a resource between when it's validated and when it's used.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

In aee daemon, there is a possible system crash due to a race condition. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10190802; Issue ID: MSV-4833.

Earlier versions of this analysis (1)
v1 Mar 15, 2026 - 14:04 CVSS 4.7

RemediationAI

Use proper synchronization mechanisms (locks, mutexes, atomic operations). Implement file locking for filesystem operations. Avoid TOCTOU patterns.

Affected VersionsENISA

MT2718, MT2737, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6893, MT6895, MT6897, MT6899, MT6980D, MT6983, MT6985, MT6989, MT6990, MT6991, MT8113, MT8115, MT8139, MT8163, MT8168, MT8169, MT8183, MT8186, MT8188, MT8512, MT8516, MT8518, MT8519, MT8532, MT8676, MT8678, MT8695, MT8696, MT8698 Android 14.0, 15.0, 16.0 / openWRT 21.02, 23.05 / Yocto 4.0

Affected Packages

euvd mt2718_mt2737_mt6739_mt6761_mt6765_mt6768_mt6781_mt6789_mt6833_mt6835_mt6853_mt6855_mt6877_mt6878_mt6879_mt6880_mt6883_mt6885_mt6886_mt6889_mt6890_mt6893_mt6895_mt6897_mt6899_mt6980d_mt6983_mt6985_mt6989_mt6990_mt6991_mt8113_mt8115_mt8139_mt8163_mt8168_mt8169_mt8183_mt8186_mt8188_mt8512_mt8516_mt8518_mt8519_mt8532_mt8676_mt8678_mt8695_mt8696_mt8698_android_14_0_15_0_16_0_openwrt_21_02_23_05_yocto no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

A race condition occurs when the behavior of software depends on the timing of events, such as the order of execution of threads or processes.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.7 MEDIUM
AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Executive ViewAI

Why It Matters

CVE-2025-20765 presents moderate security risk, a race condition vulnerability rated CVSS 4.7. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: implement rate limiting and resource quotas.

Threat Intelligence Overview

EPSS Score
0.0%
Top 100% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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