How severe is CVE-2022-42521?

CVE-2022-42521 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-42521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-42521?

CVE-2022-42521 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-42521?

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

When was CVE-2022-42521 published?

CVE-2022-42521 was published on 2022-12-16 and last updated on 2026-06-17.

CVE-2022-42521

CVE-2022-42521 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 6.7. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Google Android
Published: 2022-12-16
Last modified: 2026-06-17

Description

In encode of wlandata.cpp, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-243130019References: N/A

Frequently asked questions

What is CVE-2022-42521?: In encode of wlandata.cpp, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-243130019References: N/A
How severe is CVE-2022-42521?: CVE-2022-42521 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-42521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-42521?: CVE-2022-42521 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-42521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-42521 published?: CVE-2022-42521 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:-:*:*:*:*:*:*:*

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