CVE-2021-0522
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due...
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139
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 ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139
- Record
CVE-2021-0522- 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 - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-125, CWE-416
- Updated
- 2026-11-02
CVE List No score
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139
- Record
CVE-2021-0522- Updated
- 2026-11-02
EUVDEUVD-2021-3141 No score
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139
- Record
EUVD-2021-3141- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vg2h-5xjr-qrf3 No score
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due...
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139
- Record
GHSA-vg2h-5xjr-qrf3- Weakness
- CWE-125
- Updated
- 2026-11-02
OSVASB-A-174182139 No score
In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
ASB-A-174182139- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/system/btAndroid |
9:0 up to 9:2021-06-01, plus listed versions 9 |
9:2021-06-01 |
platform/system/btAndroid |
10:0 up to 10:2021-06-01, plus listed versions 10 |
10:2021-06-01 |
platform/system/btAndroid |
11:0 up to 11:2021-06-01, plus listed versions 11 |
11:2021-06-01 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | nanopathi/system_bt_AOSP10_r33_CVE-2021-0522 | 2022-04-22 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-0522 is a high vulnerability (CVSS 7.5) in Google Android, published June 1, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.38%, the 72nd percentile. Fixed in platform/system/bt 9:2021-06-01.