Cisco Warns of New Firewall Attack Exploiting CVE-2025-20333 and CVE-2025-20362
08.11.2025
938
Cisco has issued an urgent security advisory warning about active exploitation of two critical vulnerabilities in its firewall products that could allow attackers to execute denial-of-service attacks.
🚨 Cisco Firewalls Under Active Attack - Two Critical CVEs Being Exploited
Cisco just dropped a major security advisory - their firewalls are getting actively pwned using two fresh vulnerabilities. We're talking CVE-2025-20333 and CVE-2025-20362, both rated critical and already being exploited in the wild.
These aren't your average bugs - they're denial-of-service vulnerabilities that can completely knock Cisco firewall devices offline. Think your network security just decided to take an unscheduled vacation.
The scary part? Attackers don't need any special privileges or user interaction. They just send specially crafted packets and boom - your firewall goes down harder than a TikTok trend after 24 hours.
Cisco's not playing around - they've confirmed active exploitation and released patches. If you're running affected firewall versions, you need to update YESTERDAY. This is one of those 'drop everything and patch' situations.
- • CVE-2025-20333: Critical DoS vulnerability in firewall processing
- • CVE-2025-20362: Another critical DoS flaw in separate firewall component
- • Both vulnerabilities being actively exploited in the wild
- • No authentication required for exploitation
- • Affects multiple Cisco firewall product lines
- • Patches available immediately
Zero-day hunters and security researchers are already all over this. The fact that Cisco went public means the cat's out of the bag - expect every script kiddie and their mom to be trying these exploits soon.
Bottom line: If you manage Cisco firewalls, check your versions against the advisory and patch immediately. This isn't a drill - your network perimeter could be one crafted packet away from going dark.
#DDoS attacks#Cisco firewalls#security patches#CVE vulnerabilities#zero-day vulnerabilities
Got a topic? Write to ATLA WIRE on Telegram:t.me/atla_community
