CVE-2023-21394

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-30 · updated 2026-06-17

Description

In registerPhoneAccount of TelecomServiceImpl.java, there is a possible way to reveal images from another user due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: before 14.0 — fixed in 14.0

How to fix

Upgrade to a fixed version: Android 14.0. Check the vendor advisory for mitigations.

References

https://android.googlesource.com/platform/packages/services/Telecomm/+/68dca62035c49e14ad26a54f614199cb29a3393f
https://source.android.com/security/bulletin/2023-12-01
https://android.googlesource.com/platform/packages/services/Telecomm/+/68dca62035c49e14ad26a54f614199cb29a3393f
https://source.android.com/security/bulletin/2023-12-01

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