CVE-2023-21111

In several functions of PhoneAccountRegistrar.java, there is a possible way to prevent an access...

5.5 MediumFix available

In several functions of PhoneAccountRegistrar.java, there is a possible way to prevent an access to emergency services due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256819769

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: None
Integrity: None
Availability: High

Exploit likelihood

0.09%Unchanged since May 16, 2023

What each source reports

NVD Score used 5.5

Record: CVE-2023-21111
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1: 6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-20, CWE-1284
Updated: 2026-11-02

CVE List 6.2

Record: CVE-2023-21111
CVSS 3.1: 6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-1284
Updated: 2026-11-02

EUVDEUVD-2023-25279 6.2

Record: EUVD-2023-25279
CVSS 3.1: 6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r3cj-h858-jrrj 5.5

In several functions of PhoneAccountRegistrar.java, there is a possible way to prevent an access...

Record: GHSA-r3cj-h858-jrrj
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-20, CWE-1284
Updated: 2026-11-02

OSVASB-A-256819769 No score

In multiple functions of PhoneAccountRegistrar.java, there is a possible way to prevent an access to emergency services due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Record: ASB-A-256819769
Updated: 2026-11-05

Affected products

google android

Affected packages

Affected packages
Package	Affected	Fixed
`platform/frameworks/base` Android	14-next:0 up to 14-next:2023-11-01, plus listed versions 14-next	14-next:2023-11-01
`platform/packages/services/Telecomm` Android	14-next:0 up to 14-next:2023-11-01, plus listed versions 14-next	14-next:2023-11-01
`platform/frameworks/base` Android	11:0 up to 11:2023-11-01, plus listed versions 11	11:2023-11-01
`platform/packages/services/Telecomm` Android	11:0 up to 11:2023-11-01, plus listed versions 11	11:2023-11-01
`platform/frameworks/base` Android	12:0 up to 12:2023-11-01, plus listed versions 12	12:2023-11-01
`platform/packages/services/Telecomm` Android	12:0 up to 12:2023-11-01, plus listed versions 12	12:2023-11-01
`platform/frameworks/base` Android	12L:0 up to 12L:2023-11-01, plus listed versions 12L	12L:2023-11-01
`platform/packages/services/Telecomm` Android	12L:0 up to 12L:2023-11-01, plus listed versions 12L	12L:2023-11-01
`platform/frameworks/base` Android	13:0 up to 13:2023-11-01, plus listed versions 13	13:2023-11-01
`platform/packages/services/Telecomm` Android	13:0 up to 13:2023-11-01, plus listed versions 13	13:2023-11-01

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-21111 is a medium vulnerability (CVSS 5.5) in Google Android, published May 15, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.09%, the 0th percentile. Fixed in platform/frameworks/base 14-next:2023-11-01.