CVE record · 2 sources
CVE-2026-20221
CVSS 5.8Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3…
- Vendor
- Cisco
- Product
- Snort
- CVSS
- 5.8
- EPSS
- 0.006 (p48)
- Exposure class
- Endpoint security
Coverage
4Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.
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Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause an…
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Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause an…
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Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3…
Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause an…
-
Cisco Advance Notification for Publication of October 21, 2026, Security Advisories
On October 21, 2026, the Cisco Product Security Incident Response Team (PSIRT) published the following advisories. To remediate the vulnerabilities that were disclosed on October 21, 2026, Cisco strongly recommends that customers…