What is CVE-2021-39804?

CVE-2021-39804 is a medium-severity vulnerability in Google Android, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-04-12.

How severe is CVE-2021-39804?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Google Android

CVE-2021-39804

In reinit of HeifDecoderImpl.cpp, there is a possible crash due to a missing null check. This could lead to remote persistent denial of service in the file picker with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-215002587

EPSS: 0.004 (32.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Google Android — versions 11.0, 12.0, 12.1
N/a Android — versions Android-11 Android-12 Android-12L

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39804?: CVE-2021-39804 is a medium-severity vulnerability in Google Android, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-04-12.
How severe is CVE-2021-39804?: Medium severity. CVSS v3 base score is 6.5 out of 10.