Unauthenticated Denial of Service via Oversized URL in HTTP Parser on TP-Link Tapo C210, C220 & C520WS
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.5%
exploitation probability
0.5%top 58% of all CVEs
observed exploitation
nono source reports it
The HTTP parser of Tapo C210 v3, C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
TP Link Systems Inc. · Tapo C210 v3TP-Link Systems Inc. · Tapo C220 v1TP-Link Systems Inc. · Tapo C520WS v2References
https://www.tp-link.com/en/support/download/tapo-c210/v3/https://www.tp-link.com/en/support/download/tapo-c220/v1/https://www.tp-link.com/en/support/download/tapo-c520ws/v2/https://www.tp-link.com/us/support/download/tapo-c210/v3/https://www.tp-link.com/us/support/download/tapo-c220/v1.60/https://www.tp-link.com/us/support/download/tapo-c520ws/v2/https://www.tp-link.com/us/support/faq/4923/