Cyber Resilience

CVE-2026-47307

MediumUpdated

Published: 19 May 2026

Published
19 May 2026
Modified
02 June 2026
KEV Added
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Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0019 9.2th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-47307 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Samsung Walrus. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 9.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

NULL pointer dereference vulnerability in Samsung Open Source Walrus allows an attacker to cause a denial of service via a crafted WebAssembly module containing deeply nested instructions. This issue affects Walrus: f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

NULL pointer dereference enables direct application DoS via crafted input exploitation (T1499.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

Affected Assets

samsung
walrus
2026-04-27

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References