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CVE-2021-39632

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds...

7.8 HighFix available

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-202159709

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
High
Availability
High

Exploit likelihood

0.13%Down 0.3 points since Jan 15, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-202159709

Record
CVE-2021-39632
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-202159709

Record
CVE-2021-39632
Updated
2026-11-02
EUVDEUVD-2021-25989 No score

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-202159709

Record
EUVD-2021-25989
Updated
2026-11-03
GitHub AdvisoriesGHSA-36fw-cxfr-92fm No score

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds...

In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-202159709

Record
GHSA-36fw-cxfr-92fm
Weakness
CWE-787
Updated
2026-11-02
OSVASB-A-202159709 No score

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

Record
ASB-A-202159709
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
platform/bootable/recovery
Android
11:0 up to 11:2022-01-01, plus listed versions
11
11:2022-01-01
platform/bootable/recovery
Android
12:0 up to 12:2022-01-01, plus listed versions
12
12:2022-01-01

History

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

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

In short

CVE-2021-39632 is a high vulnerability (CVSS 7.8) in Google Android, published January 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. Fixed in platform/bootable/recovery 11:2022-01-01.

References

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