How severe is CVE-2022-20521?

CVE-2022-20521 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-20521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-20521?

CVE-2022-20521 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-20521?

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

When was CVE-2022-20521 published?

CVE-2022-20521 was published on 2022-12-16 and last updated on 2026-06-17.

CVE-2022-20521

CVE-2022-20521 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 5.0. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Google Android
Published: 2022-12-16
Last modified: 2026-06-17

Description

In sdpu_find_most_specific_service_uuid of sdp_utils.cc, there is a possible way to crash Bluetooth due to a missing null check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-227203684

Frequently asked questions

What is CVE-2022-20521?: In sdpu_find_most_specific_service_uuid of sdp_utils.cc, there is a possible way to crash Bluetooth due to a missing null check. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-227203684
How severe is CVE-2022-20521?: CVE-2022-20521 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-20521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-20521?: CVE-2022-20521 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-20521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-20521 published?: CVE-2022-20521 was published on 2022-12-16 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/pixel/2022-12-01

Affected products (1)

cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*

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