CVE-2026-73296: Microsoft UFO open-source framework for intelligent automation across devices and platforms

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CRITICAL 9.4REMOTEWATCHLIST

CVE-2026-73296 is a critical-severity flaw (CVSS 9.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, create_mobile_data_collection_server and create_mobile_action_server in ufo/client/mcp/http_servers/mobile_mcp_server.py exposed Streamable HTTP MCP services on TCP ports 8020 and 8021 without authentication, allowing an unauthenticated remote attacker to invoke capture_screenshot, get_ui_tree, tap, swipe, type_text, launch_app, press_key,

Why this priority

Critical severity
CISA SSVC: public proof of concept
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-306, CWE-862
Published	2026-08-12
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Timeline

2026-08-12 17:17 UTCPublished CVE record published
2026-10-23 19:10 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · diffoscope · FIXED · 335-1.fc46 · FEDORA-2026-e4c4cc0856 · source

sudo dnf upgrade --advisory=FEDORA-2026-e4c4cc0856

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: 0xBlackash/CVE-2026-73296 (0 stars)
Write-up: github.com/microsoft/UFO/security/advisories/GHSA-24fq-m9rr-g3mm

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

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