CVE-2020-3264

Name: CVE-2020-3264
Creator: NVD / NIST
Published: 2020-03-19T16:15:15.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2020-3264 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A vulnerability in Cisco SD-WAN Solution software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

A vulnerability in Cisco SD-WAN Solution software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access and make changes to the system that they are not authorized to make.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.73%

49.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Sd-Wan Firmware	< 18.4.5
Cisco	Sd-Wan Firmware	>= 19.2.0, < 19.2.2
Cisco	Sd-Wan Firmware	20.1.0
Cisco	Sd-Wan Firmware	20.3.0

References

https://github.com/orangecertcc/security-research/security/advisories/GHSA-wwq2-pxrj-v62rExploit, Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwanbo-QKcABnS2Vendor Advisory
https://github.com/orangecertcc/security-research/security/advisories/GHSA-wwq2-pxrj-v62rExploit, Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwanbo-QKcABnS2Vendor Advisory

Timeline

Published: Mar 19, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-3264?

How severe is CVE-2020-3264?

CVE-2020-3264 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-3264?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3264?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST