# CVE-2026-105810: Authenticated Local Stack Overflow in TP-Link Tapo C320WS

> An authenticated attacker on the adjacent network can exploit a stack overflow in the Wi-Fi configuration path to execute commands with root privileges.

- **Severity:** High 8.5 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2026
- **Updated:** 20 Oct 2026
- **Also known as:** GHSA-xj9v-v8cr-7969

## What is CVE-2026-105810?

CVE-2026-105810 is a high-severity memory corruption vulnerability in TP-Link Systems Inc. Tapo C320WS v2, published on 19 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Tapo C320WS
V2.0 contains an authenticated stack-based buffer overflow in the local
onboarding Wi-Fi configuration path. An authenticated attacker on the
adjacent network can submit a crafted request containing an oversized encrypted
password field, overwrite stack state, and execute commands with root
privileges.

Successful
exploitation may allow an authenticated adjacent-network attacker to take
control of the affected camera, modify camera behavior, access sensitive local
configuration, and disrupt device availability.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2026-105810?


## How do I fix CVE-2026-105810?

No fix has been published for CVE-2026-105810 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105810 being exploited?

There is no known exploitation of CVE-2026-105810 in the wild and no public exploit code.

Public exploit code:

- CVE-2026-105810 TP-Link Tapo C320WS authenticated connectAp stack overflow (RCE as root) (github_poc): https://github.com/M0ud4/CVE-2026-105810

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105810 and fix it if it is affected.

What it is: CVE-2026-105810 is a high-severity memory corruption vulnerability in TP-Link Systems Inc. Tapo C320WS v2, published on 19 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-2026-105810 in the wild and no public exploit code.

Affected product: TP-Link Systems Inc. Tapo C320WS v2. 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-2026-105810/ (Markdown: https://insights.sbomify.com/CVE-2026-105810/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105810
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105810
- OSV: https://osv.dev/vulnerability/CVE-2026-105810

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105810/
Summaries are generated and may contain mistakes; the official description above is the record.