CVE-2021-27705
moderate-risk
Published 2021-04-14
Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.
Do I need to act?
~
3.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (2)
G1 Firmware
Affected Vendors
References (2)
45
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
6/34 · Minimal
Exposure
7/34 · Low