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Android CVE-2026-20573

| EUVDEUVD-2026-115038
Double Free (CWE-415)
2026-11-02 MediaTek GHSA-w57x-82vr-w96m
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Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Double free prevention
Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).
No patch listed yet

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AnalysisCVE.org

In afe, there is a possible memory corruption due to double free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11431412; Issue ID: MSV-9923.

Affected VersionsENISA

MediaTek chipset MT6991
MediaTek chipset MT6885
MediaTek chipset MT6853
MediaTek chipset MT6897
MediaTek chipset MT6878
MediaTek chipset MT6877
MediaTek chipset MT8365
MediaTek chipset MT6980D
MediaTek chipset MT6989
MediaTek chipset MT8189
MediaTek chipset MT8668
MediaTek chipset MT6993
MediaTek chipset MT8793
MediaTek chipset MT8678
MediaTek chipset MT8188
MediaTek chipset MT2735
MediaTek chipset MT8367
MediaTek chipset MT8186
MediaTek chipset MT6886
MediaTek chipset MT6781
MediaTek chipset MT6899
MediaTek chipset MT6985
MediaTek chipset MT6890
MediaTek chipset MT8391
MediaTek chipset MT6988
MediaTek chipset MT8195
MediaTek chipset MT6895
MediaTek chipset MT6789
MediaTek chipset MT2737
MediaTek chipset MT8390
MediaTek chipset MT6855
MediaTek chipset MT8168
MediaTek chipset MT6990
MediaTek chipset MT6768
MediaTek chipset MT8196

Affects your stack

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  • Exploit and PoC references, threat intelligence from 22 sources

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Threat Intelligence Overview

Social Media
1
Sightings
Data Quality
2 sources
Confidence: Low

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 Not scored yet
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
No CVSS yet + weak signal (CWE or non-zero EPSS)
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.

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

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