CVE-2017-4920

Name: CVE-2017-4920
Creator: NVD / NIST
Published: 2017-12-05T21:29:00.293+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.13%

Last modified Jun 17, 2026

CVE-2017-4920 is a vulnerability of currently unknown severity. The implementation of the OSPF protocol in VMware NSX-V Edge 6.2.x prior to 6.2.8 and NSX-V Edge 6.3.x prior to 6.3.3 doesn't correctly handle the link-state advertisement (LSA). A rogue LSA may exploit this issue resulting in continuous sending of LSAs between two routers eventually going in loop or loss of connectivity.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

The implementation of the OSPF protocol in VMware NSX-V Edge 6.2.x prior to 6.2.8 and NSX-V Edge 6.3.x prior to 6.3.3 doesn't correctly handle the link-state advertisement (LSA). A rogue LSA may exploit this issue resulting in continuous sending of LSAs between two routers eventually going in loop or loss of connectivity.

Metrics

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Vmware	Nsx-V Edge	>= 6.2.0, < 6.2.8
Vmware	Nsx-V Edge	>= 6.3.0, < 6.3.3

References

http://www.securityfocus.com/bid/100277Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2017-0014.htmlVendor Advisory
http://www.securityfocus.com/bid/100277Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2017-0014.htmlVendor Advisory

Timeline

Published: Dec 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-4920?

How severe is CVE-2017-4920?

Severity scoring for CVE-2017-4920 is pending analysis. The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2017-4920?

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-2017-4920?

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

Scan your code now

Source: NVD / NIST