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CVE-2023-20871

25
FAUCET Score

CVE-2023-20871 is a local privilege escalation vulnerability in VMware Fusion, affecting both Apple macOS and VMware Fusion products. An attacker with read/write access to the host operating system can leverage this flaw to gain root privileges on the host. Rated 7.8 HIGH, this vulnerability has a low attack complexity and requires local user privileges, but can lead to complete compromise of confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) is currently available, the vulnerability has garnered significant community discussion and media coverage, including reports of it being used in a Pwn2Own contest.

Impacted Technologies

VendorProductVersion(s)CPE
>= 13.0.0, < 13.0.2CPE matchmatch criteria
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
31.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 70th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

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-2023-0008.html
Vendor Advisory