Cisco vulnerabilities

CVEs per yearBy the year they were published

1. 20091
2. 20161
3. 20178
4. 2018146
5. 2019566
6. 2020557
7. 2021586
8. 2022316
9. 2023264
10. 2024361
11. 2025239
12. 2026396

Known exploitedNewest addition to KEV first

• CVE-2026-76418

  Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability

  Cisco · Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

  ExploitedHigh8.6
• CVE-2026-76519

  Cisco Secure Email Gateway Arbitrary File Write Vulnerability

  Cisco · Cisco Secure Email

  ExploitedCritical9.8
• CVE-2026-76504

  Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability

  Cisco · Cisco Catalyst SD-WAN Manager

  ExploitedCritical9.8
• CVE-2026-76460

  Cisco Identity Services Engine Authentication Bypass Vulnerability

  Cisco · Cisco Identity Services Engine Software

  ExploitedCritical10.0
• CVE-2026-76461

  Cisco Secure Email Gateway SQL Injection Vulnerability

  Cisco · Cisco Secure Email

  ExploitedCritical9.8
• CVE-2026-20079

  Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability

  Cisco · Cisco Secure Firewall Management Center (FMC)

  ExploitedCritical10.0
• CVE-2026-20349

  Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability

  Cisco · Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

  ExploitedHigh8.6
• CVE-2026-20316

  Cisco Secure Firewall Management Center Software Static Credential Vulnerability

  Cisco · Cisco Secure Firewall Management Center (FMC)

  ExploitedMedium5.3
• CVE-2026-20230

  Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability

  Cisco · Cisco Unified Communications Manager

  ExploitedHigh8.6
• CVE-2026-20262

  Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability

  Cisco · Cisco Catalyst SD-WAN Manager

  ExploitedMedium6.5

Newest CVEs

• CVE-2026-20241

  Cisco Identity Services Engine Authorization Bypass Vulnerability

  Cisco · Cisco Identity Services Engine Software

  Medium5.3
• CVE-2026-76419

  Cisco Unified Communications Manager Cross-Site Scripting Vulnerability

  Cisco · Cisco Unified Communications Manager

  Medium6.1
• CVE-2026-76506

  Cisco Unified Computing System Central Remote Code Execution Vulnerability

  Cisco · Cisco Unified Computing System Central Software

  High7.6
• CVE-2026-76418

  Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability

  Cisco · Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

  ExploitedHigh8.6
• CVE-2026-76497

  Cisco Expressway Series Software Hardening Release: October 2026 - Insecure Temporary File Vulnerabilities

  Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway

  Medium6.6
• CVE-2026-76505

  Cisco IOS XR Software for ASR 9000 Series Routers IPv4 Unicast Packets Denial of Service Vulnerability

  Cisco · Cisco IOS XR Software

  High7.5
• CVE-2026-76524

  Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability

  Cisco · Cisco Open Source Snort3

  High7.8
• CVE-2026-76496

  Cisco Expressway Series Software Hardening Release: October 2026 - Improper Link Resolution Vulnerabilities

  Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway

  High7.0
• CVE-2026-76495

  Cisco Expressway Series Software Hardening Release: October 2026 - Incorrect Permission Assignment Vulnerabilities

  Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway

  High7.8
• CVE-2026-76494

  Cisco Expressway Series Software Hardening Release: October 2026 - Code Injection Vulnerabilities

  Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway

  High7.8