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Full vulnerability report · 2017
CVE-2017-0492High confidence

An elevation of privilege vulnerability in the System UI could enable a local malicious application to create a UI overlay covering the entire screen

Google Inc. · Android

5.5MediumCVSS 3.0
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.36% for the current model date.

Compensating controls

  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Google Inc. Android and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2017-0846

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

An elevation of privilege vulnerability in the System UI could enable a local malicious application to create a UI overlay covering the entire screen. This issue is rated as Moderate because it is a local bypass of user interaction requirements that would normally require either user initiation or user permission. Product: Android. Versions: 7.1.1. Android ID: A-30150688.

What

An elevation of privilege vulnerability in the System UI could enable a local malicious application to create a UI overlay covering the entire screen. This issue is rated as Moderate because it is a local bypass of user interaction requirements that would normally require either user initiation or user permission. Product: Android. Versions: 7.1.1. Android ID: A-30150688.

Why

The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may gain additional privileges.

What

An elevation of privilege vulnerability in the System UI could enable a local malicious application to create a UI overlay covering the entire screen. This issue is rated as Moderate because it is a local bypass of user interaction requirements that would normally require either user initiation or user permission. Product: Android. Versions: 7.1.1. Android ID: A-30150688.

Why

The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may gain additional privileges.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Restriction of Rendered UI Layers or Frames → gain additional privileges
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-1021 ↗

CWE-1021: Improper Restriction of Rendered UI Layers or Frames. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedPrivilege escalationCWE-1021
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2017-AVI-066Multiples vulnérabilités dans Google Android (Nexus)

.cve.org/CVERecord?id=CVE-2017-0483 Référence CVE CVE-2017-0484 https://www.cve.org/CVERecord?id=CVE-2017-0484 Référence CVE CVE-2017-0485 https://www.cve.org/CVERecord?id=CVE-2017-0485 Référence CVE CVE-2017-0486 https://www.cve.org/CVERecord?id=CVE-2017-0486 Référence CVE CVE-2017-0487 https://www.cve.org/CVERecord?id=CVE-2017-0487 Référence CVE CVE-2017-0488 https://www.cve.org/CVERecord?id=CVE-2017-0488 Référence CVE CVE-2017-0489 https://www.cve.org/CVERecord?id=CVE-2017-0489 Référence CVE CVE-2017-0490 https://www.cve.org/CVERecord?id=CVE-2017-0490 Référence CVE CVE-2017-0491 https://www.cve.org/CVERecord?id=CVE-2017-0491 Référence CVE CVE-2017-0492 https://www.cve.org/CVERecord?id=CVE-2017-0492 Référence CVE CVE-2017-0494 https://www.cve.org/CVERecord?id=CVE-2017-0494 Référence CVE CVE-2017-0495 https://www.cve.org/CVERecord?id=CVE-2017-0495 Référence CVE CVE-2017-0496 https://www.cve.org/CVERecord?id=CVE-2017-0496 Référence CVE CVE-2017-0497 https://www.cve.org/CVERecord?id=CVE-2017-0497 Référence CVE CVE-2017-0498 https://www.cve.org/CVERecord?id=CVE-2017-0498 Référence CVE CVE-2017-0499 https://www.cve.org/CVERecord?id=CVE-2017-0499 Référence CVE CVE-2017-0500 https://www.cve.org/CVERecord?id=CVE-2017-0500 Référence CVE CVE-2017-0501 https://www.cve.org/CVERecord?id=CVE-2017-0501 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-002033System UI における権限を昇格される脆弱性

System UI には、権限を昇格される脆弱性が存在します。 本脆弱性は、Android ID: A-30150688 として公開されています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
Android: Android-7.1.1
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 8 Mar 2017 · Last source change 5 Aug 2024, 13:11 UTC · CWE-1021 · Improper Restriction of Rendered UI Layers or Frames

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2017-0846
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA EUVD mappingEUVD-2017-0846 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-0846"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: source.android.com/2017-03-01.html.
    Before
    no authoritative guidance recorded
    After
    vendor advisory: source.android.com/2017-03-01.html
    nvd@nist.gov ↗
  3. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    NIST NVD ↗
  4. CVSS scoreCVSS score changed from not recorded to 5.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N).
    Before
    not recorded
    After
    5.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
    NIST NVD ↗
  5. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2017-0846↗Vendor advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2017-0492 · cve.blacktree.nl