CVE-2020-3199

8.8 HIGH 0.7% exploit odds Fix listed

What it is

Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.7% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-06-03 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.7% in the next 30 days (EPSS).
Severity: 8.8 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-06-03 18:15 UTC
Last modified: 2026-06-17 03:17 UTC
Exploit probability: 0.7% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Cisco iOS 12.2\(60\)ez16
Cisco iOS 15.0\(2\)sg11a
Cisco iOS 15.3\(3\)jaa1
Cisco iOS 15.3\(3\)jpj
Cisco iOS 15.4\(1\)cg
Cisco iOS 15.4\(2\)cg
Cisco iOS 15.4\(3\)m
Cisco iOS 15.4\(3\)m1

Attack profile CVSS 3.1 · 8.8

Attack vector: Adjacent network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record