TI-2021-00748 Aliases CVE-2021-1020 GHSA-c6qm-6524-j252

Improper input validation in Android

LOW 31CWE-20Published 2021-12-15 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

In snoozeNotification of NotificationListenerService.java, there is a possible way to disable notification for an arbitrary user due to improper input validation. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-195111725

Why it matters now

EPSS 0.00125 2nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Android	Android-12	—	No fix listed	CNA

Android Vendor— Affected Android-12 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:google:android:12.0:::::::*	12.0	Vulnerable	Google

cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Google

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-1020
2026-10-03 Alias added: GHSA-c6qm-6524-j252

References

Advisory 1

https://source.android.com/security/bulletin/pixel/2021-12-01

TI-2026-42236 Improper authorization in Google Android KEVCVSS 3.1HIGH 8.8
TI-2025-30821 Use after free in Google Android KEVCVSS 3.1HIGH 8.8
TI-2023-17777 Improper privilege management in Google Android KEVCVSS 3.1HIGH 8.8
TI-2025-30872 Integer overflow in Google Android KEVCVSS 3.1HIGH 8.4
TI-2024-21766 there is a possible way to bypass due to a logic error in the code. KEVCVSS 3.1HIGH 8.1
TI-2025-30849 Missing authentication in Google Android KEVCVSS 3.1HIGH 7.8

See all 8410 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences