Meta founder and CEO Mark Zuckerberg has gone to great lengths to hype the security of its new AI assistant Muse, claiming it is “built from the ground up for privacy and security.” A zero-day vulnerability that gives locally run apps and terminal commands complete control of the agent raises serious doubts. Further raising questions, Amazon on Sunday began blocking Muse from its site. Meta introduced Muse a few weeks ago.
Muse, Meta's extraordinarily privileged AI assistant, has a serious 0-day
About this summary. This is a short, independently written summary of an article first published by Ars Technica. Cyber Security News did not report or verify the underlying story. Read the original: https://arstechnica.com/security/2026/09/muse-metas-extraordinarily-privileged-ai-assistant-has-a-serious-0-day/
Source attribution: headline and facts are from Ars Technica (arstechnica.com). Summary method: excerpt of the source description. See our source attribution policy.
Related coverage
Volexity spots another China-aligned threat group exploiting Chrome and Microsoft defects
Volexity researchers spotted another state-aligned Chinese threat group exploiting a triple-link chain of zero-day vulnerabilities across multiple campaigns, the company…
NightmareEclipse's latest zero-day leaves Microsoft Defender stuck in the past
Serial Microsoft zero-day leaker NightmareEclipse has found another way to mess with Windows Defender, this time by stopping the antivirus from updating itself. The…
Chaotic Eclipse Released BigDiskBuster, A PoC For Windows Defender Update DoS Zero-Day
The researcher Chaotic Eclipse released BigDiskBuster, a PoC exploit for a Windows Defender Update DoS Zero-Day vulnerability. Security researcher Chaotic Eclipse, also…
New Windows Defender zero-day blocks Microsoft antivirus updates
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus…
Meta Muse AI app flaw lets local malware redirect dictation traffic
Meta made much of the security of its AI assistant app Muse at launch earlier this month, calling out the app's reliance on Muse Secure VM. "Each person stays in control…
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 115
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Gray Rabbits and…