CVE-2026-9770Hardcoded Cryptographic Key Information Disclosure Vulnerability on TP-Link Kasa EC70 and EC71
Updated under an hour ago ()
Does this affect you?
It affects TP-Link Systems Inc. Kasa EC71 v4 and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 8.6 HIGH (v4.0, CNA)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
- Weakness (CWE)
- CWE-321
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Analyzed
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. Kasa EC71 v4 tp_link_systems:kasa_ec71_v4 (from the name) | before 2.4.0 Build 20260520 rel.4191 | CNA record |
TP-Link Systems Inc. Kasa EC70 v4 tp_link_systems:kasa_ec70_v4 (from the name) | before 2.4.0 Build 20260520 rel.4191 | CNA record |
tp-link kasa_ec71_firmware tp-link:kasa_ec71_firmware | before 2.4.0 | NVD |
tp-link kasa_ec70_firmware tp-link:kasa_ec70_firmware | before 2.4.0 | NVD |
References
- https://www.tp-link.com/en/support/download/ec71/v4/#Firmware-Release-Notespatch, release-notes
- https://www.tp-link.com/us/support/download/ec71/v4/#Firmware-Release-Notespatch, release-notes
- https://www.tp-link.com/us/support/download/ec70/v4/#Firmware-Release-Notespatch, release-notes
- https://www.tp-link.com/en/support/download/ec70/v4/#Firmware-Release-Notespatch, release-notes
- https://www.tp-link.com/us/support/faq/5192/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.