CVE-2021-39740
In Messaging, there is a possible way to bypass attachment restrictions due to improper input...
In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112
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
What each source reports
NVD Score used
In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112
- Record
CVE-2021-39740- 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 - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112
- Record
CVE-2021-39740- Updated
- 2026-11-02
EUVDEUVD-2021-26097 No score
In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112
- Record
EUVD-2021-26097- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m2hp-89p5-rrf9
In Messaging, there is a possible way to bypass attachment restrictions due to improper input...
In Messaging, there is a possible way to bypass attachment restrictions due to improper input validation. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-209965112
- Record
GHSA-m2hp-89p5-rrf9- 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 - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39740 is a medium vulnerability (CVSS 5.5) in Google Android, published March 30, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.