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CVE-2020-4001

31
FAUCET Score

CVE-2020-4001 describes a critical vulnerability in VMware SD-WAN Orchestrator versions 3.3.2, 3.4.x, and 4.0.x, stemming from the use of default passwords for predefined accounts. This flaw allows for a Pass-the-Hash attack, enabling unauthenticated attackers to gain full control over the system. With a CVSS score of 9.8 (Critical), the vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.4.0, <= 3.4.4CPE matchmatch criteria
cpe:2.3:a:vmware:sd-wan_orchestrator:*:*:*:*:*:*:*:*
>= 4.0.0, <= 4.0.1CPE matchmatch criteria
cpe:2.3:a:vmware:sd-wan_orchestrator:*:*:*:*:*:*:*:*
3.3.2CPE matchmatch criteria
cpe:2.3:a:vmware:sd-wan_orchestrator:3.3.2:-:*:*:*:*:*:*
3.3.2CPE matchmatch criteria
cpe:2.3:a:vmware:sd-wan_orchestrator:3.3.2:p1:*:*:*:*:*:*
3.3.2CPE matchmatch criteria
cpe:2.3:a:vmware:sd-wan_orchestrator:3.3.2:p2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.90%
Probability of exploitation in next 30 days
EPSS Percentile
85.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0290 is in the 76th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

vmwarevendor investigatingvia nvd_reference
View patch

References

vmware.com / security/advisories/VMSA-2020-0025.html
Vendor Advisory