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TI-2026-59097 Aliases CVE-2026-86314GHSA-28r8-6gx4-j6mm

Integer overflow in Samsung Opensource Walrus

Priority LOW 27CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00181 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Samsung OpensourceWalrusff3bf5ff5c4878f8e5572c9593d303f6bc997443—No fix listedCNA
  • Walrus VendorSamsung Opensource Affected ff3bf5ff5c4878f8e5572c9593d303f6bc997443 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86314
  2. 2026-10-03 Alias added: GHSA-28r8-6gx4-j6mm

References

Other 1

  • TI-2026-59096 Out-of-bounds write in Samsung Opensource Walrus CVSS 3.1HIGH 7.8
  • TI-2026-59098 An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux… CVSS 3.1MEDIUM 6.2
  • TI-2026-70802 Heap-based buffer overflow in Samsung Opensource rlottie CVSS 3.1MEDIUM 5.5
  • TI-2026-62285 Integer overflow in Samsung Opensource Escargot CVSS 3.1MEDIUM 5.5
  • TI-2026-62028 Stack-based buffer overflow in Samsung Opensource rLottie CVSS 3.1MEDIUM 4.4
  • TI-2026-36654 Out-of-bounds read in Samsung Opensource rLottie CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences