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New Cisco Network Vulnerability Let Remote Attacker Cause DoS Attack

📅 7 May 2026 at 15:44 UTC📰 Cyber Security NewsView original source ↗
New Cisco Network Vulnerability Let Remote Attacker Cause DoS Attack

Cisco has issued a critical security advisory regarding a high-severity vulnerability impacting its Crosswork Network Controller (CNC) and Network Services Orchestrator (NSO). Tracked formally as CVE-2026-20188 with a CVSS base score of 7.5, this flaw poses a significant risk to network infrastructure. If successfully exploited, the vulnerability allows unauthenticated, remote attackers to trigger a severe […] The post New Cisco Network Vulnerability Let Remote Attacker Cause DoS Attack appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

A critical vulnerability in Cisco's Crosswork Network Controller and Network Services Orchestrator allows unauthenticated, remote attackers to trigger a severe denial-of-service (DoS) attack, posing significant risks to network infrastructure.

⚙️Technical Details
CVEs
CVE-2026-20188
Affected Systems
Cisco Crosswork Network ControllerCisco Network Services Orchestrator
Attack Vectors
NETWORK
💥Impact Assessment
Severity: Critical
🛡️Recommended Actions
1Implement a patch for the vulnerability as soon as possible.
2Monitor network traffic for signs of DoS attacks.
3Conduct regular security audits to identify and remediate potential vulnerabilities.
📦Affected Products
Cisco Crosswork Network ControllerCisco Network Services Orchestrator
🔐NVD Verified DataVERIFIED
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
Weaknesses
CWE-400

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