Qualcomm buffer overflow via misused addition in length check
CVE-2026-25290 Published on September 17, 2026
Integer Overflow or Wraparound in OOBM
Memory Corruption when validating large data buffers from external sources using addition to check buffer length.
Vulnerability Analysis
CVE-2026-25290 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
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-2026-25290
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Affected Versions
Qualcomm, Inc. Snapdragon:- Version Cologne is affected.
- Version FastConnect 7800 is affected.
- Version Snapdragon X2 Elite is affected.
- Version WCD9378C is affected.
- Version WSA8840 is affected.
- Version WSA8845 is affected.
- Version WSA8845H 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.