CVE-2026-9770 Hardcoded Cryptographic Key Information Disclosure Vulnerability on TP-Link Kasa EC70 and EC71
Attackers can extract a shared static key from firmware to decrypt traffic or perform MITM attacks on TP-Link Kasa cameras.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9770?
CVE-2026-9770 is a high-severity vulnerability in TP-Link Systems Inc. Kasa EC70 v4, published on 15 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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
Weakness: CWE-321
Which versions are affected by CVE-2026-9770?
It affects 2 products.
Products include Tp-Link Kasa Ec70 Firmware, Tp-Link Kasa Ec71 Firmware.
How do I fix CVE-2026-9770?
No fix has been published for CVE-2026-9770 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9770 being exploited?
There is no known exploitation of CVE-2026-9770 in the wild and no public exploit code.
Other vulnerabilities in TP-Link Systems Inc. Kasa EC70 v4
Sources
Also known as GHSA-q3g3-7q7p-5jwv.