CVE-2021-27137

DD-WRT Stack-Based Buffer Overflow Vulnerability
4.0%
EPSS
91%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

DD-WRT contains a stack-based buffer overflow vulnerability that could allow an unauthenticated attacker to overflow an internal buffer used by UPnP and trigger a code execution vulnerability.

Vendor
DD-WRT
Product
DD-WRT
Added to KEV
Jul 21, 2026
Remediation due
Jul 24, 2026 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-121
EPSS
4.0% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded