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Cisco

6,456 CVEs tracked since 1999. Since Apr 2021, 44 of them reached CISA KEV.

Cisco CVEs per month

Apr 2021 to Nov 2026. Point at a month, or focus the strip and use the arrow keys.
Cisco CVEs per month, with the share now in CISA KEV
MonthCVEsIn CISA KEV
2021-04460
2021-05702
2021-06270
2021-07250
2021-08290
2021-09510
2021-10520
2021-11210
2021-122 or fewer
2022-01180
2022-02255
2022-033 or fewer
2022-04591
2022-05481
2022-06110
2022-07550
2022-08150
2022-09211
2022-10150
2022-11470
2022-1270
2023-01240
2023-02170
2023-03no snapshot
2023-04421
2023-05280
2023-06120
2023-0760
2023-08370
2023-09312
2023-1073
2023-11390
2023-124 or fewer
2024-01130
2024-02100
2024-03350
2024-04222
2024-05210
2024-064 or fewer
2024-07121
2024-08210
2024-09321
2024-10941
2024-111040
2024-123 or fewer
2025-0180
2025-02300
2025-03140
2025-0481
2025-05480
2025-06181
2025-07111
2025-08480
2025-09323
2025-1080
2025-11170
2025-125 or fewer
2026-01111
2026-02224
2026-03701
2026-04320
2026-05201
2026-06103
2026-07201
2026-08481
2026-09983
2026-10722
2026-110

Products

The products that kept showing up in Cisco's monthly top three, with their CVEs summed over those months.

  1. IOS XE12611 months
  2. Firepower Threat Defense1016 months
  3. Cisco IOS XE Software978 months
  4. Cisco IOS XE929 months
  5. Cisco Small Business RV Series Router Firmware866 months
  6. Cisco Firepower Threat Defense Software825 months
  7. Cisco Identity Services Engine Software748 months
  8. Cisco Secure Firewall Threat Defense (FTD) Software553 months
  9. Secure Firewall Management Center462 months
  10. Identity Services Engine435 months

Latest CVEs

The 15 most recently published vulnerabilities affecting Cisco.

  1. CVE-2026-76506Cisco Unified Computing System Central Remote Code Execution Vulnerability7.6
  2. CVE-2026-76419Cisco Unified Communications Manager Cross-Site Scripting Vulnerability6.1
  3. CVE-2026-20241Cisco Identity Services Engine Authorization Bypass Vulnerability5.3
  4. CVE-2026-76418Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability8.6
  5. CVE-2026-76497Cisco Expressway Series Software Hardening Release: October 2026 - Insecure Temporary File Vulnerabilities6.6
  6. CVE-2026-76524Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability7.8
  7. CVE-2026-76505Cisco IOS XR Software for ASR 9000 Series Routers IPv4 Unicast Packets Denial of Service Vulnerability7.5
  8. CVE-2026-76496Cisco Expressway Series Software Hardening Release: October 2026 - Improper Link Resolution Vulnerabilities7.0
  9. CVE-2026-76495Cisco Expressway Series Software Hardening Release: October 2026 - Incorrect Permission Assignment Vulnerabilities7.8
  10. CVE-2026-76494Cisco Expressway Series Software Hardening Release: October 2026 - Code Injection Vulnerabilities7.8
  11. CVE-2026-76493Cisco Expressway Series Software Hardening Release: October 2026 - Uncaught Exception Vulnerabilities7.5
  12. CVE-2026-76490Cisco Expressway Series Software Hardening Release: October 2026 - Out-of-bounds Write Vulnerabilities8.6
  13. CVE-2026-76489Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability5.8
  14. CVE-2026-76492Cisco Expressway Series Software Hardening Release: October 2026 - NULL Pointer Vulnerabilities7.5
  15. CVE-2026-76491Cisco Expressway Series Software Hardening Release: October 2026 - Denial of Service Vulnerabilities7.5

The record

Peak rank
#1 in Jul 2017
Busiest month shown
Nov 2024, 104 CVEs
Months with a KEV entry
25 since Apr 2021
Monthly snapshots
267 since 1999
Cisco's full record, month by month