CVE-2026-47307: CWE-476 NULL pointer dereference in Samsung Open Source Walrus
CVE-2026-47307 is a NULL pointer dereference vulnerability in Samsung Open Source Walrus. It allows an attacker to cause a denial of service by supplying a crafted WebAssembly module with deeply nested instructions. The vulnerability affects a specific version of Walrus identified by commit f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9. There is no known exploit in the wild and no official patch or remediation guidance has been provided yet. The CVSS score is 5.5, indicating a medium severity impact focused on availability disruption.
AI Analysis
Technical Summary
This vulnerability (CWE-476) in Samsung Open Source Walrus results from a NULL pointer dereference triggered by processing a maliciously crafted WebAssembly module containing deeply nested instructions. The flaw leads to a denial of service condition by crashing or halting the affected software. The issue affects the Walrus version identified by commit f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9. No vendor advisory or patch information is currently available, and no exploits have been reported in the wild.
Potential Impact
Successful exploitation causes denial of service (DoS) by crashing the Walrus component, impacting availability. There is no impact on confidentiality or integrity. The medium CVSS score reflects the limited scope of impact and the requirement for local access (attack vector is local).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or crafted WebAssembly modules with deeply nested instructions in the affected Walrus version. Monitor official Samsung Open Source channels for updates or patches.
CVE-2026-47307: CWE-476 NULL pointer dereference in Samsung Open Source Walrus
Description
CVE-2026-47307 is a NULL pointer dereference vulnerability in Samsung Open Source Walrus. It allows an attacker to cause a denial of service by supplying a crafted WebAssembly module with deeply nested instructions. The vulnerability affects a specific version of Walrus identified by commit f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9. There is no known exploit in the wild and no official patch or remediation guidance has been provided yet. The CVSS score is 5.5, indicating a medium severity impact focused on availability disruption.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-476) in Samsung Open Source Walrus results from a NULL pointer dereference triggered by processing a maliciously crafted WebAssembly module containing deeply nested instructions. The flaw leads to a denial of service condition by crashing or halting the affected software. The issue affects the Walrus version identified by commit f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9. No vendor advisory or patch information is currently available, and no exploits have been reported in the wild.
Potential Impact
Successful exploitation causes denial of service (DoS) by crashing the Walrus component, impacting availability. There is no impact on confidentiality or integrity. The medium CVSS score reflects the limited scope of impact and the requirement for local access (attack vector is local).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or crafted WebAssembly modules with deeply nested instructions in the affected Walrus version. Monitor official Samsung Open Source channels for updates or patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- samsung.tv_appliance
- Date Reserved
- 2026-05-19T02:40:40.159Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0bdac7ec166c07b04037c5
Added to database: 05/19/2026, 03:36:39 UTC
Last enriched: 05/26/2026, 08:26:53 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 79
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