# CVE-2026-102370: Physical UART Access Leading to an Unauthenticated Root Shell in TP-Link Kasa EC70 and EC71

> Physical access allows attackers to restore debug interfaces and obtain an unauthenticated root shell on TP-Link Kasa cameras.

- **Severity:** Medium 5.4 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Oct 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-6p9x-mrgq-g8cr

## What is CVE-2026-102370?

CVE-2026-102370 is a medium-severity authentication bypass vulnerability in TP-Link Systems Inc. Kasa EC70 V4, published on 1 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

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.

Weakness: CWE-1191 (On-Chip Debug and Test Interface With Improper Access Control)

## Which versions are affected by CVE-2026-102370?


## How do I fix CVE-2026-102370?

No fix has been published for CVE-2026-102370 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-102370 being exploited?

There is no known exploitation of CVE-2026-102370 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-102370 and fix it if it is affected.

What it is: CVE-2026-102370 is a medium-severity authentication bypass vulnerability in TP-Link Systems Inc. Kasa EC70 V4, published on 1 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-102370 in the wild and no public exploit code.

Affected product: TP-Link Systems Inc. Kasa EC70 V4. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-102370/ (Markdown: https://insights.sbomify.com/CVE-2026-102370/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102370
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102370
- OSV: https://osv.dev/vulnerability/CVE-2026-102370

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102370/
Summaries are generated and may contain mistakes; the official description above is the record.