Cisco
Number 8 by total vulnerabilities in the catalog.
Computed from the whole catalog when the site is built.
Combines these spellings from source records: Cisco, cisco
Total vulnerabilities
3,487
Critical
267
High
1,167
Known Exploited
72
Exploit available
20
Visible in Bangladesh
2,473
Services seen by internet scanning
Network, no login needed
40.4%
Of 3,328 scored records
- Critical
- High
- Medium
- Low
- None or not scored
Show as table
| Period | Total | Critical | High | Medium | Low | None or not scored |
|---|---|---|---|---|---|---|
| 2026 (incomplete) | 397 | 81 | 137 | 177 | 1 | 1 |
| 2025 | 239 | 16 | 65 | 155 | 3 | 0 |
| 2024 | 361 | 15 | 84 | 261 | 1 | 0 |
| 2023 | 264 | 13 | 67 | 181 | 0 | 3 |
| 2022 | 317 | 33 | 74 | 208 | 1 | 1 |
| 2021 | 586 | 45 | 252 | 288 | 0 | 1 |
| 2020 | 558 | 39 | 232 | 273 | 6 | 8 |
| 2019 | 566 | 21 | 230 | 312 | 0 | 3 |
| 2018 | 160 | 4 | 11 | 22 | 0 | 123 |
| 2017 | 27 | 0 | 8 | 0 | 0 | 19 |
| 2016 | 4 | 0 | 3 | 0 | 0 | 1 |
| 2015 | 1 | 0 | 1 | 0 | 0 | 0 |
| 2014 | 1 | 0 | 0 | 1 | 0 | 0 |
| 2013 | 1 | 0 | 1 | 0 | 0 | 0 |
| 2012 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2011 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2010 | 1 | 0 | 1 | 0 | 0 | 0 |
| 2009 | 2 | 0 | 0 | 1 | 0 | 1 |
| 2008 | 1 | 0 | 1 | 0 | 0 | 0 |
| 2007 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2006 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2005 | 1 | 0 | 0 | 1 | 0 | 0 |
Top products
| Product | Total | Critical/High |
|---|---|---|
| Cisco Small Business RV Series Router Firmware | 261 | 167 |
| Cisco IOS XE Software | 222 | 119 |
| Cisco Identity Services Engine Software | 199 | 39 |
| Cisco Adaptive Security Appliance (ASA) Software | 156 | 81 |
| Cisco Firepower Management Center | 128 | 32 |
| Cisco IOS XR Software | 113 | 63 |
| Cisco NX-OS Software | 102 | 44 |
| Cisco Firepower Threat Defense Software | 95 | 33 |
| Cisco Data Center Network Manager | 74 | 32 |
| Cisco SD-WAN vManage | 60 | 22 |
Top bug types
| Bug type | Total | Critical/High |
|---|---|---|
| Improper Input Validation | 396 | 216 |
| Cross-Site Scripting | 373 | 1 |
| Memory Corruption | 319 | 213 |
| Command Injection | 236 | 81 |
| Improper Access Control | 160 | 50 |
| Information Disclosure | 95 | 12 |
| Path Traversal | 93 | 23 |
| Denial of Service | 91 | 47 |
| Authentication Issues | 84 | 48 |
| SQL Injection | 73 | 30 |
Known to be attacked
| CVE | Title | Published | Severity | EPSS |
|---|---|---|---|---|
| CVE-2026-76418 | Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability | High | 0.8% | |
| CVE-2026-76519 | Cisco Secure Email Gateway Arbitrary File Write Vulnerability | Critical | 6.2% | |
| CVE-2026-76504 | Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability | Critical | 38.9% | |
| CVE-2026-76460 | Cisco Identity Services Engine Authentication Bypass Vulnerability | Critical | 75.6% | |
| CVE-2026-76461 | Cisco Secure Email Gateway SQL Injection Vulnerability | Critical | 40.2% | |
| CVE-2026-20320 | Cisco BroadWorks: XML External Entity | High | 0.4% | |
| CVE-2026-20349 | Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability | High | 1.0% | |
| CVE-2026-20316 | Cisco Secure Firewall Management Center Software Static Credential Vulnerability | Medium | 35.1% | |
| CVE-2026-20262 | Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability | Medium | 29.1% | |
| CVE-2026-20245 | Cisco Catalyst SD-WAN Controller Authenticated Privilege Escalation Vulnerability | High | 25.3% |
Newest vulnerabilities
| CVE | Title | Published | Severity | EPSS |
|---|---|---|---|---|
| CVE-2026-20183 | ISE Authorization Bypass vulnerability | Medium | n/a | |
| CVE-2026-76506 | Cisco Unified Computing System Central Remote Code Execution Vulnerability | High | 1.4% | |
| CVE-2026-76419 | Cisco Unified Communications Manager Cross-Site Scripting Vulnerability | Medium | 0.3% | |
| CVE-2026-20241 | Cisco Identity Services Engine Authorization Bypass Vulnerability | Medium | 0.2% | |
| CVE-2026-76418 | Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability | High | 0.8% | |
| CVE-2026-76524 | Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability | High | 0.2% | |
| CVE-2026-76505 | Cisco IOS XR Software for ASR 9000 Series Routers IPv4 Unicast Packets Denial of Service Vulnerability | High | 0.5% | |
| CVE-2026-76497 | Cisco Expressway Series Software Hardening Release: October 2026 - Insecure Temporary File Vulnerabilities | Medium | 0.2% | |
| CVE-2026-76496 | Cisco Expressway Series Software Hardening Release: October 2026 - Improper Link Resolution Vulnerabilities | High | 0.2% | |
| CVE-2026-76495 | Cisco Expressway Series Software Hardening Release: October 2026 - Incorrect Permission Assignment Vulnerabilities | High | 0.1% |