CVE-2021-39671
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to...
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
- Record
CVE-2021-39671- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-908
- Updated
- 2026-11-02
CVE List No score
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
- Record
CVE-2021-39671- Updated
- 2026-11-02
EUVDEUVD-2021-26028 No score
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
- Record
EUVD-2021-26028- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fp26-fc43-5569 No score
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to...
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206718630
- Record
GHSA-fp26-fc43-5569- Weakness
- CWE-908
- Updated
- 2026-11-02
OSVASB-A-206718630 No score
In code generated by aidl_const_expressions.cpp, there is a possible out of bounds read due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
ASB-A-206718630- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/system/tools/aidlAndroid |
12:0 up to 12:2022-02-01, plus listed versions 12 |
12:2022-02-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39671 is a medium vulnerability (CVSS 6.5) in Google Android, published February 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. Fixed in platform/system/tools/aidl 12:2022-02-01.
References
source.android.com/security/bulletin/2022-02-01
nvd.nist.gov/vuln/detail/CVE-2021-39671
github.com/advisories/GHSA-fp26-fc43-5569
android.googlesource.com/platform/system/tools/aidl/+/dd0d78f0ead984881caee291751226001f92587e