Qualcomm Memory Corruption via Alignment Allocation
CVE-2026-21385 Published on March 2, 2026

Integer Overflow or Wraparound in Graphics
Memory corruption while using alignments for memory allocation.

NVD

Known Exploited Vulnerability

This Qualcomm Multiple Chipsets Memory Corruption Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation. .

The following remediation steps are recommended / required by March 24, 2026: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis

CVE-2026-21385 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. 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

Integer Overflow or Wraparound

The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.


Products Associated with CVE-2026-21385

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Qualcomm Snapdragon
 

Affected Versions

Qualcomm, Inc. Snapdragon:

Exploit Probability

EPSS
0.38%
Percentile
59.23%

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.