How severe is CVE-2021-39670?

CVE-2021-39670 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-39670 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39670?

CVE-2021-39670 primarily affects Google Android. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-39670?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-39670 published?

CVE-2021-39670 was published on 2022-05-10 and last updated on 2026-06-17.

CVE-2021-39670

CVE-2021-39670 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.9
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Google Android
Published: 2022-05-10
Last modified: 2026-06-17

Description

In setStream of WallpaperManager.java, there is a possible way to cause a permanent DoS due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12LAndroid ID: A-204087139

Frequently asked questions

What is CVE-2021-39670?: In setStream of WallpaperManager.java, there is a possible way to cause a permanent DoS due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12LAndroid ID: A-204087139
How severe is CVE-2021-39670?: CVE-2021-39670 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-39670 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39670?: CVE-2021-39670 primarily affects Google Android. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-39670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39670 published?: CVE-2021-39670 was published on 2022-05-10 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/2022-05-01

Affected products (2)

cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:12.1:*:*:*:*:*:*:*

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