CVE-2023-21053
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a...
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-251805610References: N/A
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-251805610References: N/A
- Record
CVE-2023-21053- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-251805610References: N/A
- Record
CVE-2023-21053- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2023-25221
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-251805610References: N/A
- Record
EUVD-2023-25221- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4p5h-843x-xxv8
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a...
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-251805610References: N/A
- Record
GHSA-4p5h-843x-xxv8- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVPUB-A-251805610 No score
In sms_ExtractCbLanguage of sms_CellBroadcast.c, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
PUB-A-251805610- Updated
- 2026-11-10
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
:unknown:Android |
Pixel-family specific:0 up to Pixel-family specific:2023-03-05, plus listed versions Pixel-family specific |
Pixel-family specific:2023-03-05 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21053 is a high vulnerability (CVSS 7.5) in Google Android, published March 1, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. Fixed in :unknown: Pixel-family specific:2023-03-05.