Integer overflow in Samsung Opensource Walrus
CVE-2026-86314
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.
Vulnerability class: Integer Overflow
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Samsung Opensource Walrus — versions ff3bf5ff5c4878f8e5572c9593d303f6bc997443
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-86314?
- CVE-2026-86314 is a medium-severity vulnerability in Samsung Opensource Walrus, classified under Integer Overflow or Wraparound. CVSS score: 6.2/10. Published 2026-09-07.
- How severe is CVE-2026-86314?
- Medium severity. CVSS v3 base score is 6.2 out of 10.