Qualcomm IOCTL Buffer Overrun via memcpy (CVE-2026-21372)
CVE-2026-21372 Published on April 6, 2026

Heap-Based Buffer Overflow in Power Management IC
Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.

NVD

Vulnerability Analysis

CVE-2026-21372 is exploitable with local system access, and requires small amount of 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:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().


Products Associated with CVE-2026-21372

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Qualcomm Snapdragon
 
Google Android
 

Affected Versions

Qualcomm, Inc. Snapdragon:

Exploit Probability

EPSS
0.10%
Percentile
0.90%

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.