Cisco vulnerabilities
3,442 CVEs and advisories name Cisco as an affected vendor, 63 of them on CISA's Known Exploited Vulnerabilities catalog, newest first. Follow it as a feed.
- CVE-2026-20236Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
- CVE-2026-20221Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities
- CVE-2026-20291Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
- CVE-2026-20197Multiple Cisco Products Snort 3 Teredo Protocol Denial of Service Vulnerability
- CVE-2026-20218Cisco Secure Firewall Threat Defense Snort 3 Visual Basic for Applications Buffer Overflow Denial of Service Vulnerability
- CVE-2026-20179Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities
- CVE-2026-20043Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
- CVE-2026-20019Multiple Cisco Products Snort 3 Netflow Denial of Service Vulnerabilities
- CVE-2026-20011Multiple Cisco Products Snort 3 SMTP MIME Denial of Service Vulnerability
- CVE-2026-76519Cisco Secure Email Gateway Arbitrary File Write Vulnerability
- CVE-2026-76472Cisco Meraki Security Hardening Release October 2026 - Improper Neutralization of Special Elements Vulnerabilities
- CVE-2026-76467Cisco Meraki Software Hardening Release - Resource Lifetime Management Vulnerabilities
- CVE-2026-76470Cisco Meraki Hardening Release - Incorrect Calculation Vulnerabilities
- CVE-2026-76469Cisco Meraki Security Hardening Release: October 2026 Insufficient Control Flow Management Vulnerabilities
- CVE-2026-76468Cisco Meraki Hardening Release - Input Validation Vulnerabilities
- CVE-2026-76464Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities
- CVE-2026-76463Cisco Meraki Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities
- CVE-2026-76501Cisco Nexus 9000 Series Switches SRv6 OAM (NGOAM) Remote Code Execution Vulnerability
- CVE-2026-76500Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime…
- CVE-2026-76498Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Access Control Vulnerabilities
- CVE-2026-76499Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Neutralization Vulnerabilities
- CVE-2026-76486Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerability
- CVE-2026-76488Cisco Application Policy Infrastructure Controller Authenticated Information Disclosure Vulnerability
- CVE-2026-76484Cisco License On-Prem Security Hardening Release
- CVE-2026-76485Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerability
- CVE-2026-76483Cisco License On-Prem Security Hardening Release
- CVE-2026-76482Cisco License On-Prem Security Hardening Release
- CVE-2026-76480Cisco License On-Prem Security Hardening Release
- CVE-2026-76458Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Handling of Exceptional Conditions Vulnerabilities
- CVE-2026-76459Cisco NX-OS Software Security Hardening Release: October 2026 - Out-of-bounds Write Vulnerabilities