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HomeCVEsCVE-2023-20867

CVE-2023-20867

Published: January 26, 2026
Last updated:1 day ago (January 26, 2026)
Exploit: YesZero-day: YesPatch: YesTrend: Neutral
TL;DR
Updated January 26, 2026

CVE-2023-20867 is a low severity vulnerability with a CVSS score of 3.9. Exploits are available; patches have been released and should be applied urgently. This is classified as a zero-day vulnerability.

Key Points
  • 1Low severity (CVSS 3.9/10)
  • 2EPSS: 3.00% - moderate likelihood of exploitation
  • 3Public exploits are available
  • 4Vendor patches are available
  • 5Strobes Priority Score: 390/1000 (Low)
  • 6Affects products from: Fedoraproject, Debian, VMware
Severity Scores
CVSS v33.9
CVSS v20.0
Priority Score390.0
EPSS Score3.0
Low
Exploitation LikelihoodLow
3.00%EPSS

Lower probability of exploitation

Patch during regular maintenance
3.00%
EPSS
3.9
CVSS
Yes
Exploit
Yes
Patch
Medium Priority
exploit exists

EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.

Description

VMware Tools contains an authentication bypass vulnerability in the vgauth module. A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. An attacker must have root access over ESXi to exploit this vulnerability.

CVSS v3 Breakdown
Attack Vector:Local
Attack Complexity:High
Privileges Required:High
User Interaction:Network
Scope:Changed
Confidentiality:Local
Integrity:Local
Availability:Network
Exploit References
Cisa.gov
Patch References
[email protected][email protected][email protected]Zeroday CZ
Trend Analysis
Neutral
Vulnerable Products
VendorProduct
FedoraprojectFedora
DebianDebian Linux
VMwareTools
Advisories
CISA: VMware Tools contains an authentication bypass vulnerability in the vgauth module. A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. An attacker must have root access over ESXi to exploit this vulnerability.
GitHub AdvisoryNVD
Cite This Page
APA Format
Strobes VI. (2026). CVE-2023-20867 - CVE Details and Analysis. Strobes VI. Retrieved January 27, 2026, from https://vi.strobes.co/cve/CVE-2023-20867
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