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.
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.
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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Affected Versions
Qualcomm, Inc. Snapdragon:- Version Cologne is affected.
- Version FastConnect 6700 is affected.
- Version FastConnect 6900 is affected.
- Version FastConnect 7800 is affected.
- Version QCM5430 is affected.
- Version QCM6490 is affected.
- Version Qualcomm Video Collaboration VC3 Platform is affected.
- Version Snapdragon 460 Mobile Platform is affected.
- Version Snapdragon 662 Mobile Platform is affected.
- Version Snapdragon 7c+ Gen 3 Compute is affected.
- Version WCD9370 is affected.
- Version WCD9375 is affected.
- Version WCD9378C is affected.
- Version WCD9380 is affected.
- Version WCD9385 is affected.
- Version WCN3950 is affected.
- Version WCN3988 is affected.
- Version WSA8840 is affected.
- Version WSA8845 is affected.
- Version WSA8845H is affected.
- Version X2000077 is affected.
- Version X2000086 is affected.
- Version X2000090 is affected.
- Version X2000092 is affected.
- Version X2000094 is affected.
- Version XG101002 is affected.
- Version XG101032 is affected.
- Version XG101039 is affected.
Exploit Probability
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.