CVE-2023-21394
In Telecomm, there is a possible bypass of a multi user security boundary due to a confused...
CVE-2023-21394 is a medium vulnerability (CVSS 5.5) in Google Android, published October 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 0th percentile. Fixed in platform/packages/services/Telecomm 14-next:2023-12-01.
- Severity
- 5.5 MediumCVSS 3.1, NVD
- Exploit chance
- 0.10%EPSS, 0th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
14-next:2023-12-01platform/packages/services/Telecomm +4 more
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/packages/services/TelecommAndroid | 14-next:0 up to 14-next:2023-12-01, plus listed versions 14-next | 14-next:2023-12-01 |
platform/packages/services/TelecommAndroid | 11:0 up to 11:2023-12-01, plus listed versions 11 | 11:2023-12-01 |
platform/packages/services/TelecommAndroid | 12:0 up to 12:2023-12-01, plus listed versions 12 | 12:2023-12-01 |
platform/packages/services/TelecommAndroid | 12L:0 up to 12L:2023-12-01, plus listed versions 12L | 12L:2023-12-01 |
platform/packages/services/TelecommAndroid | 13:0 up to 13:2023-12-01, plus listed versions 13 | 13:2023-12-01 |
What each source reports
NVD Score used
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.
- Record
CVE-2023-21394- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2023-21394- Updated
- 2026-11-02
EUVDEUVD-2023-25562No score
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.
- Record
EUVD-2023-25562- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j2mm-q34r-gvxp
In Telecomm, there is a possible bypass of a multi user security boundary due to a confused...
In Telecomm, there is a possible bypass of a multi user security boundary due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
GHSA-j2mm-q34r-gvxp- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVASB-A-296915211No score
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.
- Record
ASB-A-296915211- Updated
- 2026-11-09
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.