HomeCVE Intelligence › CVE-2026-53921
CVSS 9.1 CRITICAL Vulnerability

CVE-2026-53921: Critical OpenWrt DHCPv6 Flaw Could Let Unauthenticated Attackers Run Code as Root

OpenWrt has shipped version 24.10.8 to close a critical DHCPv6 stack overflow and a wider set of remotely triggerable flaws in network services enabled by default. The critical issue, tracked as CVE-2026-53921 and rated…

9.1CVSS Score
CRITICALSeverity
NOCISA KEV
VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-53921
VendorMultiple Vendors
Affected ProductMultiple Products
Vulnerability TypeVulnerability
CVSS Score9.1 (CRITICAL)
Actively Exploited❌ No known exploitation
Patch StatusPending Vendor Disclosure
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via sentinel_apex)

🔬 Technical Analysis

OpenWrt has shipped version 24.10.8 to close a critical DHCPv6 stack overflow and a wider set of remotely triggerable flaws in network services enabled by default.

The critical issue, tracked as CVE-2026-53921 and rated 9.8 on CVSS 3.1 in OpenWrt's GitHub advisory, lets an unaut... [Full analysis available on Pro]

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