CVE-2022-20777

Name: CVE-2022-20777
Creator: NVD / NIST
Published: 2022-05-04T17:15:08.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 10.76%

Last modified Jun 17, 2026

CVE-2022-20777 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. Multiple vulnerabilities in Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an attacker to escape from the guest virtual machine (VM) to the host machine, inject commands that execute at the root level, or leak system data from the host to the VM. For more information about these vulnerabilities, see the Details section of this advisory.. EPSS estimates a 10.76% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an attacker to escape from the guest virtual machine (VM) to the host machine, inject commands that execute at the root level, or leak system data from the host to the VM. For more information about these vulnerabilities, see the Details section of this advisory.

Metrics

CVSS 3.1

9.9/10

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

EPSS Probability

10.76%

95.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Cisco	Enterprise Nfv Infrastructure Software	< 4.7.1

References

https://github.com/orangecertcc/security-research/security/advisories/GHSA-v56f-9gq3-rx3gExploit, Mitigation, Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-NFVIS-MUL-7DySRX9Vendor Advisory
https://github.com/orangecertcc/security-research/security/advisories/GHSA-v56f-9gq3-rx3gExploit, Mitigation, Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-NFVIS-MUL-7DySRX9Vendor Advisory

Timeline

Published: May 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-20777?

How severe is CVE-2022-20777?

CVE-2022-20777 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 10.76% probability of exploitation in the next 30 days.

How do I fix CVE-2022-20777?

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-2022-20777?

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

Scan your code now

Source: NVD / NIST