CVE-2026-9770: high-severity vulnerability in TP-Link Systems Inc. Kasa EC71 v4
Hardcoded Cryptographic Key Information Disclosure Vulnerability on TP-Link Kasa EC70 and EC71
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
Kasa EC71 v4 and EC70 v4 firmware contains a static cryptographic private key stored in a read-only filesystem
that is shared across devices. An
attacker with access to the firmware image can extract the embedded key.
Successful
exploitation may allow an unauthenticated attacker on the same network to use
this key in the web management service, compromising the confidentiality of
encrypted communications. This may enable passive decryption of traffic or
active man-in-the-middle (MITM) attacks
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Related CVEs — TP-Link Systems Inc. Kasa EC71 v4
In the same product, most dangerous first.
References
https://www.tp-link.com/en/support/download/ec70/v4/#Firmware-Release-Noteshttps://www.tp-link.com/en/support/download/ec71/v4/#Firmware-Release-Noteshttps://www.tp-link.com/us/support/download/ec70/v4/#Firmware-Release-Noteshttps://www.tp-link.com/us/support/download/ec71/v4/#Firmware-Release-Noteshttps://www.tp-link.com/us/support/faq/5192/