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CVE Record

CVE-2023-21260: In notification access permission dialog box, malicious application can embedded a very long service label...

In notification access permission dialog box, malicious application can embedded a very long service label that overflow the original user prompt and possibly contains mis-leading information to be appeared as a system message for user confirmation.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A malicious Android app could use an unusually long notification-listener service label to visually overflow the notification access permission dialog and show misleading text that looks like a system message. The risk is user deception, not direct remote compromise. Business urgency depends on whether affected Android versions are still present and unpatched.

Executive priority

Treat this as a moderate mobile fleet hygiene issue. It can support user deception and improper permission grants, but the provided sources do not show active exploitation or direct system compromise. Prioritize managed-device patching and permission review.

Technical view

CVE-2023-21260 affects Google Android 13, 12L, 12, and 11. The issue is in the notification access permission dialog: a long service label can overflow the original prompt and misrepresent confirmation text. Sources provide no CVSS score, CWE, exploit evidence, or detailed fixed build information.

Likely exposure

Organizations with Android 13, 12L, 12, or 11 devices may be exposed, especially where users can install untrusted apps or grant notification access. Exposure is lower on fully updated devices or managed fleets that restrict app installation and sensitive permissions.

Exploitation context

The source bundle does not show active exploitation, public weaponization, or KEV listing. Exploitation appears to require a malicious local application and user interaction with a permission dialog. The documented impact is misleading consent through UI overflow.

Researcher notes

The evidence is sparse: no CVSS, CWE, proof-of-concept, exploit status, or exact fixed build data is provided in the bundle. Analysis should stay bounded to dialog overflow and misleading notification-access consent on the listed Android versions.

Mitigation direction

  • Check Google and OEM guidance for the applicable July 2023 Android or AAOS bulletin updates.
  • Prioritize updates for Android 13, 12L, 12, and 11 devices still in service.
  • Restrict installation of untrusted apps through MDM or enterprise app controls.
  • Review and limit apps granted notification access permissions.
  • Remove suspicious apps that request notification access without a clear business need.

Validation and detection

  • Inventory Android and AAOS devices by OS version and patch status.
  • Identify devices running Android 13, 12L, 12, or 11 without relevant vendor updates.
  • Audit notification access grants for unusual or unnecessary applications.
  • Confirm managed-device policies restrict risky app installation paths.
  • Document exceptions where OEM patch guidance is unavailable or incomplete.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2023-21260 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoogleAndroid13, 12L, 12, 11unaffected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.