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Google Android EUVDEUVD-2026-115384

| CVE-2026-58937 MEDIUM
Improper Input Validation (CWE-20)
2026-11-02 google_android GHSA-q728-hq92-v74h
6.2
CVSS 3.1 · Vendor: google_android
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Install or compromise unprivileged local app
  2. Exploit
    Send crafted malformed input
  3. Execution
    Trigger improper input validation
  4. Impact
    Cause persistent denial of service

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Exploitation Conditions

Exploitation requires local access to the device - the attacker must already be executing code locally (AV:L), typically via a malicious or compromised application, since there is no network-reachable entry point. Once local code runs, no privileges (PR:N) and no user interaction (UI:N) are required to trigger the flaw by supplying crafted input to one of several code paths lacking proper input validation (CWE-20), resulting in a persistent denial of service. The primary limiting factor is the local attack vector: remote exploitation is not possible, so an attacker must first achieve a foothold on the device (e.g., convince a user to install a malicious app). The description does not condition the flaw on any non-default setting or special deployment mode, so default configurations of the affected Android 14-17 versions appear exposed.

Impact

This is a moderate-severity, local-only availability issue (CVSS 3.1 6.2, AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) affecting Google Android 14 through 17. All exploitation signals point to a low real-world priority rather than an urgent crisis: the vector is LOCAL (AV:L), meaning an attacker must already be running code on the device (e.g., a malicious or compromised app), which sharply limits reach compared to a network-exploitable flaw. EPSS is very low at 0.11% (1st percentile), there is no CISA KEV listing (not confirmed actively exploited), and no public exploit was identified. The impact is confined to availability (A:H, persistent denial of service) with zero confidentiality or integrity impact (C:N/I:N). The vuln.today decision label is 'this_month', consistent with a patch-on-normal-cadence item rather than act_now/emergency. The one notable aggravator is the persistent nature of the DoS and that no privileges (PR:N) or user interaction (UI:N) are required once local code execution exists, so any unprivileged local app could trigger it. Net: a legitimate but non-emergency fix - address it in the normal monthly Android patch cycle; it is not a high-CVSS-but-overblown issue so much as a genuinely bounded local availability bug.

Exploit ScenarioDerived

A malicious or compromised unprivileged application installed on an Android device supplies crafted input to one of several vulnerable code paths that perform improper input validation, triggering a persistent denial of service that degrades or disables device functionality until remediated. Because the vector is local (AV:L), the attacker must first have code running on the device, but no elevated privileges or user interaction are required thereafter. No public exploit code was identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Nov 03, 2026

A persistent denial-of-service flaw in Google Android 14, 15, 16, 16-qpr2 and 17 lets code already running on the device crash or wedge one of several input-handling paths that fail to validate data properly (CWE-20). Because the vector is local, an attacker must first get code onto the phone - typically a malicious or compromised app - but then needs neither elevated privileges nor any user interaction to trigger a lasting availability impact; confidentiality and integrity are unaffected. The issue is rated CVSS 3.1 6.2, EPSS is 0.11% (1st percentile), there is no CISA KEV entry, and no public exploit code has been identified at time of analysis.

RemediationAI

Apply the Android platform fixes published in the November 2026 Android Security Bulletin (https://source.android.com/docs/security/bulletin/2026/2026-11-01) and confirm the device patch level reflects that bulletin; per Google's process the bulletin lists the patched versions and component-level fixes, so rely on the specific builds named there for each Android 14 through 17 branch rather than an inferred version number. Until devices are updated, reduce the local attack surface by restricting installation to trusted sources and enforcing Play Protect or equivalent app scanning, though this only lowers the chance of a malicious app gaining the foothold the flaw requires and does not remove the bug itself.

Affected VersionsENISA

Android 15
Android 16-qpr2
Android 14
Android 17
Android 16

Affects your stack

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Technical ContextAI · show details

The affected component sits within the Android platform (CPE cpe:2.3:a:google:android), and the root cause is CWE-20, improper input validation, occurring in multiple code locations rather than a single entry point. Untrusted or malformed input accepted by those paths is not sufficiently checked, and the resulting fault escalates to a persistent denial of service rather than a transient crash. The CVSS vector (AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) confirms the skill of the attacker matters little once local code execution is achieved and that only availability is at stake. The trigger specifics per code path are not described in the available sources, and the bulletin does not condition exposure on any non-default setting, so default builds of the listed Android 14 through 17 releases appear affected.

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Severity by source

Vendor (google_android) PRIMARY 6.2 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI 6.2 MEDIUM

Local vector since exploitation requires code on the device; PR:N/UI:N per the description that no privileges or interaction are needed; impact is persistent DoS so A:H with C:N/I:N.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (google_android).

CVSS VectorVendor: google_android

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

Lifecycle Timeline

3
CVSS changed
Nov 03, 2026 - 21:22 NVD
6.2 (MEDIUM)
CVE Published
Nov 02, 2026 - 19:54 cve.org
MEDIUM 6.2
CVE Published
Nov 02, 2026 - 19:54 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In multiple locations, there is a possible persistent denial of service due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Ubiquitous
Android is one of the most widely deployed mobile operating systems worldwide
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 0.1%
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
High

Priority Score

31
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +31
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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