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openwrt

38 known vulnerabilities.

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  • Critical 9.8
    CVE-2026-53921 Public exploit

    odhcpd: Stack buffer overflow in DHCPv6 IA reply serialization (2 independent sites)

    odhcpd is the DHCPv6, DHCPv4, and router-advertisement server used by OpenWrt. Prior to version 25.12, odhcpd's DHCPv6 IA response handler writes past the end of a fixed 512-byte stack buffer (pdbuf) when a single DHCPv6 REQUEST carries enough IA options to n…