The vulnerability of the IS-IS routing protocol implementation in Cisco IOS XR operating systems allows a attacker to cause service interruptions.
🗓️ 14 Apr 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 7 Views
| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | CVE-2026-20074 | 11 Mar 202616:31 | – | attackerkb |
 | CVE-2026-20074 | 11 Mar 202616:37 | – | circl |
 | Cisco IOS XR Software Multi-Instance Intermediate System-to-Intermediate System Denial of Service Vulnerability | 11 Mar 202616:00 | – | cisco |
 | Cisco IOS XR 安全漏洞 | 11 Mar 202600:00 | – | cnnvd |
 | CVE-2026-20074 | 11 Mar 202616:31 | – | cve |
 | CVE-2026-20074 Cisco IOS XR Software Multi-Instance Intermediate System-to-Intermediate System Denial of Service Vulnerability | 11 Mar 202616:31 | – | cvelist |
 | EUVD-2026-11219 | 11 Mar 202618:30 | – | euvd |
 | Vulnerabilities fixed in Cisco IOS XR | 12 Mar 202614:44 | – | ncsc |
 | CVE-2026-20074 | 11 Mar 202617:16 | – | nvd |
 | PT-2026-24730 | 11 Mar 202600:00 | – | ptsecurity |
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14 Apr 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 26.1
CVSS 37.4
EPSS0.0016