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

> Attackers can cause denial of service on USR-W610 routers by broadcasting forged deauthentication frames due to missing management frame protection.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Feb 2026
- **Updated:** 20 Feb 2026
- **Also known as:** GHSA-3vr9-ghwq-fh8h

## What is CVE-2026-26048?

CVE-2026-26048 is a high-severity missing authorization vulnerability in Jinan USR IOT Technology Limited (PUSR) USR-W610, published on 20 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-26048?


## How do I fix CVE-2026-26048?

No fix has been published for CVE-2026-26048 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26048 being exploited?

There is no known exploitation of CVE-2026-26048 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26048 and fix it if it is affected.

What it is: CVE-2026-26048 is a high-severity missing authorization vulnerability in Jinan USR IOT Technology Limited (PUSR) USR-W610, published on 20 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-26048 in the wild and no public exploit code.

Affected product: Jinan USR IOT Technology Limited (PUSR) USR-W610. 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-2026-26048/ (Markdown: https://insights.sbomify.com/CVE-2026-26048/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26048
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26048
- OSV: https://osv.dev/vulnerability/CVE-2026-26048

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-26048/
Summaries are generated and may contain mistakes; the official description above is the record.