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Google Android CVE-2026-55263

| EUVDEUVD-2026-115569 HIGH
User Interface (UI) Misrepresentation of Critical Information (CWE-451)
2026-11-02 google_android GHSA-c8wr-m3rj-wm9w
8.4
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 malicious local app
  2. Delivery
    Launch AllowBindAppWidgetActivity consent prompt
  3. Exploit
    Present misleading/insufficient UI
  4. Execution
    User misreads reject vs consent
  5. Persist
    Unintended privilege grant
  6. Impact
    Local escalation of privilege

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V3 - Web Frontend Security UI security representation
Exploitation Conditions

Exploitation requires an attacker-controlled app already present and running locally on the device (AV:L) that invokes AllowBindAppWidgetActivity, plus active user interaction: the victim must be deceived by the misleading or insufficient consent UI into approving an app-widget bind they intended to reject (CWE-451). Limiting factors: no remote network reachability, a malicious app must first be installed, and success depends on the user actually being fooled by the dialog, so it cannot be triggered silently or automatically. It affects Android 14 through 17 (including 16-qpr2); devices patched per the 2026-11-01 bulletin are not exposed.

Impact

Signals are mixed and point to a moderate, not emergency, priority. The published CVSS of 8.4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) rates this High, but note a direct conflict: the vector encodes UI:N (no user interaction) while the description explicitly states 'User interaction is needed for exploitation' - one of these is wrong, and the description (consistent with CWE-451, UI misrepresentation) strongly implies UI:R, which would lower the true base score. The attack vector is local (AV:L), so this is not remotely reachable: an attacker needs code already running on the device (typically a malicious installed app). EPSS is very low at 0.11% (1st percentile), the CVE is not on CISA KEV, and no public exploit is identified, so there is no evidence of active or imminent exploitation. SSVC-style framing: exploitation is none/unverified, impact is high-but-local, and automatability is low because it hinges on tricking a human through a misleading consent dialog. The vuln.today decision label is 'this_week' rather than act_now/emergency. Net: a legitimately high-severity local EoP that should be patched on the normal Android monthly cadence, but it is not a drop-everything issue - it is driven by severity rating, not by real-world exploitation pressure.

Exploit ScenarioDerived

A user installs a malicious or compromised app that invokes AllowBindAppWidgetActivity and presents a misleading or ambiguous consent dialog, causing the user to approve a widget-bind action they believe they are rejecting. The mistaken consent grants the app elevated capability it should not have, achieving local privilege escalation with no additional execution privileges. No public exploit is identified at time of analysis, and because success depends on deceiving a human, exploitation is not automatable.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Nov 03, 2026

Local escalation of privilege on Android 14, 15, 16, 16-QPR2 and 17 stems from misleading or insufficient consent UI in the platform's AllowBindAppWidgetActivity, where a user's reject action can be misunderstood as consent when binding an app widget. Exploitation requires a malicious app already installed and running on the device plus a victim who is fooled by the deceptive dialog, so the flaw is neither remotely reachable nor silently triggerable; the assessed vector is AV:L/AC:L/PR:N/UI:R with high confidentiality, integrity and availability impact. Risk telemetry is modest - EPSS 0.11% (1st percentile), no CISA KEV entry, and no public exploit identified at time of analysis - consistent with a this_week, moderate-priority decision rather than an emergency.

RemediationAI

Update to a build that incorporates the Android Security Bulletin of 2026-11-01 (https://source.android.com/docs/security/bulletin/2026/2026-11-01); the bulletin is the authoritative source for the exact patch levels and build identifiers per branch and per device, which are not enumerated in the data available here, so verify the reported security patch level on each device rather than assuming a single fixed version string. No vendor-documented workaround or configuration-level mitigation is given in the supplied sources, and the available evidence presents updating as the complete fix; the practical exposure reduction available in the meantime is procedural - the flaw requires an attacker-controlled app already installed and a user who is deceived by the consent dialog, so limiting the set of locally installed apps and treating unexpected widget-binding prompts as untrusted lowers the chance of a successful attempt without addressing the underlying UI defect. Track the bulletin for any subsequently published per-device images covering Android 14 through 17 and 16-QPR2.

Affected VersionsENISA

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

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Technical ContextAI · show details

The affected component is part of Android's app-widget framework. Binding an AppWidgetHost to a widget provider normally requires the BIND_APPWIDGET permission, which is signature|privileged; when an ordinary app requests a bind, the platform hands the decision to the system AllowBindAppWidgetActivity, which presents the user with a consent dialog. This CVE is classified as CWE-451 (User Interface (UI) Misrepresentation of Critical Information): the accept/reject semantics of that dialog are not conveyed unambiguously, so what the user perceives and intends can diverge from the action the system records. The practical consequence is that the user's click approving a bind may not correspond to the decision they believed they made, letting a locally installed app obtain a widget binding privileges it should have been denied, with follow-on effects rated high for confidentiality, integrity and availability. The precise triggering mechanics beyond misleading or insufficient UI are not described in the available sources; the vendor's own score (8.4, CVSS:3.1/AV:L/AC:L/PR:N/UI:N) differs from our assessment in that we treat the deceived-user step as genuine user interaction (UI:R), reflecting that a human must be misled for the bind to be granted. The affected code base is identified by CPE cpe:2.3:a:google:android across Android 14 through 17, and ENISA tracks it as EUVD-2026-115569.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (google_android) PRIMARY 8.4 HIGH
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.8 HIGH

Local app vector with no privileges (AV:L/PR:N), but the description requires the user to be deceived, so UI:R rather than the input's UI:N; impact remains high per the Android EoP rating.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/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
High
Integrity
High
Availability
High

Lifecycle Timeline

3
CVSS changed
Nov 03, 2026 - 17:22 NVD
8.4 (HIGH)
CVE Published
Nov 02, 2026 - 19:53 cve.org
HIGH 8.4
CVE Published
Nov 02, 2026 - 19:53 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In multiple functions of AllowBindAppWidgetActivity.java, there is a possible misunderstanding of reject/consent actions due to misleading or insufficient UI. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

Executive ViewAI

Why It Matters

CVE-2026-55263 is a high-severity local privilege escalation flaw in Android's widget consent UI that could allow a malicious app to gain elevated permissions when a user is tricked into misinterpreting a reject action as consent. This affects all Android 14 through 17 devices, putting corporate data and device integrity at risk if users install untrusted apps. Leadership should care because a single user error could lead to unauthorized access to sensitive information and system resources.

Business Impact: Medium
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting app installations to trusted sources via MDM, enforcing app allowlists, disabling widget binding for non-essential apps, and providing user awareness training on consent dialogs.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Ubiquitous
Android is the most widely deployed mobile OS globally
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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Medium

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

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