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CVE-2021-39793

Google Pixel Out-of-Bounds Write

7.8 HIGHActively exploited (CISA KEV)EPSS 0.69%
  1. Published16 Mar 2022
  2. Added to CISA KEV11 Apr 2022
  3. Remediation due2 May 2022
Actively exploited (CISA KEV)

Google Pixel contains a possible out-of-bounds write due to a logic error in the code that could lead to local escalation of privilege.

Added to KEV: 11 Apr 2022Federal remediation due: 2 May 2022

Description

In kbase_jd_user_buf_pin_pages of mali_kbase_mem.c, there is a possible out of bounds write due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210470189References: N/A

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Google Androidall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2021-39793 being actively exploited?

Yes. CVE-2021-39793 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 11 Apr 2022.

How severe is CVE-2021-39793?

CVE-2021-39793 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.69% probability of exploitation.

Which products are affected by CVE-2021-39793?

Affected products include Google Android.

How do I fix CVE-2021-39793?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2021-39793 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.