SARA / Free Tools / CVE / CVE-2021-39793

CVE-2021-39793 — Google Pixel Out-of-Bounds Write Vulnerability

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:

CVSS
EPSS
10.00% (top 73.70%)
CWE
Published
2022-03-16T14:04:04.000Z
Last modified
2025-10-21T23:15:44.355Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2022-04-11
BOD 22-01 due
2022-05-02
Ransomware use
Unknown

01What is this vulnerability?

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

02Affected products

VendorProductVersions
na / AndroidAndroid kernel

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-04-11. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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