What is CVE-2020-3946?

CVE-2020-3946 is a high-severity vulnerability in VMware Installbuilder, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 7.5/10. Published 2020-04-20.

How severe is CVE-2020-3946?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in VMware Installbuilder

CVE-2020-3946

InstallBuilder AutoUpdate tool and regular installers enabling <checkForUpdates> built with versions earlier than 19.11 are vulnerable to Billion laughs attack (denial-of-service).

EPSS: 0.010 (60.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Vmware Installbuilder — versions All versions prior to version 19.11.0

Weakness classification (CWE)

CWE-776 — Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion)

References

security@vmware.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-3946?: CVE-2020-3946 is a high-severity vulnerability in VMware Installbuilder, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 7.5/10. Published 2020-04-20.
How severe is CVE-2020-3946?: High severity. CVSS v3 base score is 7.5 out of 10.