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The vulnerability of the Border Gateway Protocol (BGP) in the Cisco NX-OS operating system of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches allows a attacker to cause service interruptions.
🗓️ 26 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | CVE-2026-20171 | 20 May 202616:06 | – | attackerkb |
 | CVE-2026-20171 | 20 May 202618:47 | – | circl |
 | Cisco Nexus 3000 and 9000 Series Switches Border Gateway Protocol Denial of Service Vulnerability | 20 May 202616:00 | – | cisco |
 | Cisco Nexus 3000 and 9000 Series Switches BGP DoS (cisco-sa-bgp-iefab-3hb2pwtx) | 29 May 202600:00 | – | nessus |
 | Cisco NX-OS Software 安全漏洞 | 20 May 202600:00 | – | cnnvd |
 | CVE-2026-20171 | 20 May 202616:06 | – | cve |
 | CVE-2026-20171 Cisco Nexus 3000 and 9000 Series Border Gateway Protocol Denial of Service Vulnerability | 20 May 202616:06 | – | cvelist |
 | EUVD-2026-31135 | 20 May 202616:06 | – | euvd |
 | CVE-2026-20171 | 20 May 202617:16 | – | nvd |
 | PT-2026-42190 | 20 May 202600:00 | – | ptsecurity |
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26 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 25.4
CVSS 36.8
EPSS0.00467