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CVE-2021-39667

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due...

6.5 MediumFix available

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

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

0.73%Down 2.0 points since Mar 17, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

Record
CVE-2021-39667
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

Record
CVE-2021-39667
Updated
2026-11-02
EUVDEUVD-2021-26024 No score

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

Record
EUVD-2021-26024
Updated
2026-11-03
GitHub AdvisoriesGHSA-7qc3-w7g5-wxwm 6.5

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due...

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-205702093

Record
GHSA-7qc3-w7g5-wxwm
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness
CWE-787
Updated
2026-11-02
OSVASB-A-205702093 No score

In ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.

Record
ASB-A-205702093
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
platform/external/libavc
Android
10:0 up to 10:2022-03-01, plus listed versions
10
10:2022-03-01
platform/external/libavc
Android
11:0 up to 11:2022-03-01, plus listed versions
11
11:2022-03-01
platform/external/libavc
Android
12:0 up to 12:2022-03-01, plus listed versions
12
12:2022-03-01
platform/external/libavc
Android
12L:0 up to 12L:2022-03-01, plus listed versions
12L
12L:2022-03-01

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-2021-39667 is a medium vulnerability (CVSS 6.5) 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 0.73%, the 54th percentile. Fixed in platform/external/libavc 10:2022-03-01.

References

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