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CVE-2021-39708

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an...

9.8 CriticalFix available

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206128341

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
High
Availability
High

Exploit likelihood

1.23%Down 1.5 points since Mar 17, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206128341

Record
CVE-2021-39708
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206128341

Record
CVE-2021-39708
Updated
2026-11-02
EUVDEUVD-2021-26065 No score

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206128341

Record
EUVD-2021-26065
Updated
2026-11-03
GitHub AdvisoriesGHSA-5c67-9qgc-qxw3 9.8

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an...

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-206128341

Record
GHSA-5c67-9qgc-qxw3
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-119
Updated
2026-11-02
OSVASB-A-206128341 No score

In gatt_process_notification of gatt_cl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Record
ASB-A-206128341
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
platform/system/bt
Android
12:0 up to 12:2022-03-01, plus listed versions
12
12:2022-03-01
platform/system/bt
Android
12L:0 up to 12L:2022-03-01, plus listed versions
12L
12L:2022-03-01

History

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

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

In short

CVE-2021-39708 is a critical vulnerability (CVSS 9.8) in Google Android, published March 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 69th percentile. Fixed in platform/system/bt 12:2022-03-01.

References

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