What is CVE-2026-53921?
This CVE is awaiting full analysis in the National Vulnerability Database. For the authoritative record, see NVD: CVE-2026-53921.
Affected product
See advisory
Remediation Steps
- Update OpenWrt to version 24.10.8 or later
- Disable DHCPv6 server if not required for network operations
- Restrict network access to DHCPv6 server to trusted subnets only
- Monitor network traffic for crafted DHCPv6 packets targeting odhcpd service
- Verify patch installation and reboot affected devices
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.