How many CVEs does Cisco have?

Cisco has 6,845 published CVE records since 1999, including 415 in the last two years.

How many Cisco CVEs are in CISA KEV?

Yes — 99 of Cisco's CVEs are listed in CISA's Known Exploited Vulnerabilities catalog, confirmed exploited in the wild and carrying a CISA remediation deadline.

Which Cisco products have the most CVEs?

The Cisco products with the most published CVEs are IOS, ios_xe, adaptive_security_appliance_software, nx-os, Cisco Small Business RV Series Router Firmware.

What are the most common weakness types in Cisco CVEs?

Cisco's CVEs most often map to these CWE weakness types: CWE-20 (Improper Input Validation), CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-399.

Are there public exploits for Cisco vulnerabilities?

Yes — 346 of Cisco's CVEs have a known public exploit.

How many critical Cisco vulnerabilities are there?

Cisco has 641 critical and 2,710 high-severity CVEs.

What is the average severity of Cisco CVEs?

The average CVSS base score across Cisco's scored CVEs is 6.8.

RadicalNotion.AI

Log in Start free

Log in

Log in Start free

6,845 CVEs

99 in CISA KEV

Cisco Vulnerabilities

Name: Cisco vulnerability dataset (CVEs)
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

CVE security advisories and vulnerability history for Cisco.

6,845

Total CVEs

Published

99

In CISA KEV

Exploited in the wild

346

Public exploits

PoC or exploit code

6.8

Avg CVSS

1999–2026

Overview

Cisco has 6,845 published CVE records since 1999, of which 99 are in CISA's Known Exploited Vulnerabilities catalog and 346 have a known public exploit. The average CVSS base score across scored CVEs is 6.8.

This page aggregates every publicly disclosed vulnerability (CVE) affecting Cisco products, with severity breakdowns, the most-affected products, the most common weakness types, and the latest disclosures.

Security scorecard

A quick read on Cisco's vulnerability posture, as a share of its 6,845 published CVEs.

Average CVSS: 6.8
Critical / high: 49%
Actively exploited (KEV): 1%
Public exploit available: 5%
Patch available: 28%

Severity and exploitation

How the CVSS severity of Cisco's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.

Critical641

High2,710

Medium3,419

Low74

1 additional CVE has no CVSS severity score.

In CISA’s Known Exploited Vulnerabilities catalog

99

99 of Cisco's CVEs are confirmed exploited in the wild.

Public exploits

346

346 of Cisco's CVEs have a known public exploit available.

Most affected products

The Cisco products with the most published CVEs. Follow any product to browse its versions and vulnerabilities.

Common weakness types

The CWE weakness categories most often found in Cisco CVEs. Follow any weakness for its full explanation.

CNAs that assign these CVEs

The CVE Numbering Authorities that publish Cisco CVE records.

Disclosure activity by year

How many Cisco CVEs were published each year.

2019

567

2020

571

2021

595

2022

319

2023

268

2024

363

2025

240

2026

175

Latest Cisco CVEs

The most recently disclosed vulnerabilities affecting Cisco.

Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities
CWE-703
High · CVSS 7.5
EPSS 0.3%2026-07-15
Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities
CWE-664
High · CVSS 7.5
EPSS 0.3%2026-07-15
Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities
CWE-20
High · CVSS 7.5
EPSS 0.3%2026-07-15
Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities
CWE-311
High · CVSS 7.5
EPSS 0.1%2026-07-15
Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
CWE-119
High · CVSS 8.1
EPSS 0.2%2026-07-15
Cisco Identity Services Engine Path Traversal Vulnerability
CWE-22
Medium · CVSS 5.5
EPSS 0.3%2026-07-15
Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities
CWE-284
High · CVSS 8.8
EPSS 0.2%2026-07-15
High vulnerability · 2026-07-08
CWE-78
High · CVSS 7.2
EPSS 1.0%2026-07-08
High vulnerability · 2026-07-08
CWE-78
High · CVSS 7.2
EPSS 1.0%2026-07-08
High vulnerability · 2026-07-08
CWE-78
High · CVSS 7.2
EPSS 1.3%2026-07-08
High vulnerability · 2026-07-08
CWE-78
High · CVSS 7.2
EPSS 1.0%2026-07-08
ClamAV ALZ Archive Processing Denial of Service Vulnerability
CWE-120
High · CVSS 7.5
EPSS 0.4%2026-07-01

Track new Cisco CVEs as they are disclosed and get AI-written analysis and remediation guidance.

Monitor Cisco CVEs

Other vendors

Browse vulnerabilities for other tracked vendors.

Debian10,221 CVEs IBM8,380 CVEs Red Hat7,778 CVEs Adobe7,522 CVEs Fedora Project5,449 CVEs canonical4,320 CVEs mozilla3,666 CVEs siemens3,608 CVEs

Browse all vendors

Frequently asked questions

Common questions about Cisco vulnerabilities.

How many CVEs does Cisco have?: Cisco has 6,845 published CVE records since 1999, including 415 in the last two years.
How many Cisco CVEs are in CISA KEV?: Yes — 99 of Cisco's CVEs are listed in CISA's Known Exploited Vulnerabilities catalog, confirmed exploited in the wild and carrying a CISA remediation deadline.
Which Cisco products have the most CVEs?: The Cisco products with the most published CVEs are IOS, ios_xe, adaptive_security_appliance_software, nx-os, Cisco Small Business RV Series Router Firmware.
What are the most common weakness types in Cisco CVEs?: Cisco's CVEs most often map to these CWE weakness types: CWE-20 (Improper Input Validation), CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-399.
Are there public exploits for Cisco vulnerabilities?: Yes — 346 of Cisco's CVEs have a known public exploit.
How many critical Cisco vulnerabilities are there?: Cisco has 641 critical and 2,710 high-severity CVEs.
What is the average severity of Cisco CVEs?: The average CVSS base score across Cisco's scored CVEs is 6.8.

References

Vulnerability data is sourced from the CVE Program; severity, KEV, and exploit signals are aggregated by RadicalNotion.AI.

Track Cisco vulnerabilities

Monitor new Cisco vulnerabilities as they are disclosed, with AI-written analysis and remediation guidance.

Start free See pricing