Wire · technology
Critical Cisco Secure Email Gateway zero-day gives attackers root access
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Cybersecurity
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United States
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◆ Verified
Fusion42 · 15 September 2026 · Fusion42 review
A critical zero-day vulnerability in Cisco Secure Email Gateway allows attackers to gain root-level unauthenticated remote code execution, providing a powerful foothold to compromise targeted systems.
This Wire brief sits within Fusion42's coverage of Cybersecurity, and 3 sources have reported it.
◆ ◆ The Wire takeaway
This Cisco email security flaw opens a fast lane for attackers to take over critical infrastructure. You need to patch immediately or lose control of your email gateway.
◆ Coverage
3 sources · 15 Sep 2026
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Cybersecurityciscozero-dayemail-securityrcecybersecurity