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CVE-2023-21111

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

5.5 MediumFix available

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.

What does this mean?
Severity
5.5 MediumCVSS 3.1, NVD
Exploit chance
0.09%EPSS, 0th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
14-next:2023-11-01platform/frameworks/base +9 more

Description

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
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
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

What each source reports

NVD Score used5.5

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

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 List6.2

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

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-2023-252796.2

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

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-jrrj5.5

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

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

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-256819769No 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
2026-11-10

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

References

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