CVE-2026-102370Physical UART Access Leading to an Unauthenticated Root Shell in TP-Link Kasa EC70 and EC71
Updated under an hour ago ()
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It affects TP-Link Systems Inc. Kasa EC70 V4 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Kasa EC70 v4 and EC71 v4 do not logically disable the production debug interface at the firmware or chip level and do not lock the bootloader. Although the debug traces are physically severed during manufacturing, an attacker with physical access can restore the connection, interrupt the boot process, and manipulate boot parameters to enter a non-standard initialization path that exposes an unauthenticated root shell during startup. Successful exploitation may allow an attacker with physical access to obtain root-level command access during device startup, resulting in loss of confidentiality, integrity, and availability for the affected device. Exploitation requires device disassembly, restoration of the severed debug connection, and manipulation of the boot process.
- CVSS
- 5.4 MEDIUM (v4.0, CNA)CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-1191
- 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
- Deferred
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. Kasa EC70 V4 tp_link_systems:kasa_ec70_v4 (from the name) | before 2.4.3 Build 20260902 rel.4511 | CNA record |
TP-Link Systems Inc. Kasa EC71 V4 tp_link_systems:kasa_ec71_v4 (from the name) | before 2.4.3 Build 20260902 rel.4511 | CNA record |
References
- https://www.tp-link.com/us/support/download/ec71/v4/#Firmware-Release-Notespatch
- https://www.tp-link.com/us/support/download/ec70/v4/#Firmware-Release-Notespatch
- https://www.tp-link.com/us/support/faq/5324/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.