ARM SMMU V3 smmu_detach_dev UAF OOB write -> local privilege escalation
CVE-2026-0027 Published on March 2, 2026

In smmu_detach_dev of arm-smmu-v3.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-0027 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-0027 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-0027

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Google Android
 

Affected Versions

Google Android Version Android kernel is affected by CVE-2026-0027

Exploit Probability

EPSS
0.01%
Percentile
1.90%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.