CVE-2026-86314
Received Received - Intake

Integer Overflow in Samsung Walrus WebAssembly Module

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: Samsung TV & Appliance

Description
Integer overflow in the source-bounds check in Memory::init() (src/runtime/Memory.cpp) in Samsung walrus on all platforms allows a remote attacker to cause an out-of-bounds heap read and denial of service via a crafted WebAssembly module in which a 32-bit unsigned addition wraps around and bypasses the bounds check. This issue affects Walrus: ff3bf5ff5c4878f8e5572c9593d303f6bc997443.

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Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
CVE-2026-86314
EUVD
EUVD-2026-72238

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
samsung walrus *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product 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 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 become a very small or negative number.

Attack-Flow Graph

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Executive Summary

This vulnerability is an integer overflow in the source-bounds check within the Memory::init() function in Samsung walrus. It occurs when a 32-bit unsigned addition wraps around, allowing a remote attacker to bypass bounds checks. This can lead to an out-of-bounds heap read and cause a denial of service via a crafted WebAssembly module.

Impact Analysis

This vulnerability can allow a remote attacker to crash the system by causing a denial of service. It may also enable reading memory outside intended bounds, potentially exposing sensitive data or leading to further exploitation depending on the system configuration.

Compliance Impact

The vulnerability may lead to denial of service via crafted WebAssembly modules, which could disrupt systems handling sensitive data. This could impact compliance with GDPR (availability requirements) or HIPAA (system integrity and availability) if services are interrupted.

Mitigation Strategies

Update Samsung Walrus to the latest patched version to address the integer overflow in Memory::init(). Monitor for crashes or out-of-bounds reads in WebAssembly module processing.

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