CVE-2021-27137 DD-WRT DD-WRT
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 request that would overflow an internal fixed buffer. Exploitation requires the…
- CVSS
- 8.1 High
- EPSS
- 4.0%
- Percentile
- 91
- Published
- 2026-07-16
- Force
- 9 of 12
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
On CISA’s exploited list
DD-WRT Stack-Based Buffer Overflow Vulnerability
- Added
- 2026-07-21
- Federal patch deadline
- 2026-07-24
- Ransomware use
- not known