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DD-WRT — security advisories

2 advisories2 exploitedlatest 2026-07-21⚡ RSS feed

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CVE-2021-27137: DD-WRT Stack-Based Buffer Overflow Vulnerability

criticalexploitedCVE-2021-27137cisa-kev2026-07-21

CVE-2021-27137: An issue was discovered in router/upnp/src/ssdp.c in DD-WRT before 45724. An unsafe strcpy in the UPnP handling functionality allows an unauthenticated remote attacker to send a re

highexploitedCVSS 8.1CVE-2021-27137nvd2026-07-16

DD-WRT security advisories · CSIRTS