Security readout for executives and security teams
Plain-English summary
CVE-2023-20854 lets a local user on a machine with VMware Workstation delete arbitrary files from that machine. This can disrupt endpoint availability or tamper with important files. The issue affects VMware Workstation 17.x before 17.0.1.
Executive priority
Treat this as a high-priority endpoint maintenance issue where VMware Workstation is deployed. Urgency is highest on shared or multi-user systems because the required attacker access is local, but the integrity and availability impact is high.
Technical view
VMware Workstation has an arbitrary file deletion flaw attributed to CWE-269. Exploitation requires local user privileges, low attack complexity, and no user interaction. CVSS 3.1 is 8.4 with high integrity and availability impact, no confidentiality impact, and changed scope.
Likely exposure
Exposure is limited to systems running VMware Workstation 17.x earlier than 17.0.1, especially shared workstations, developer endpoints, labs, and systems where untrusted local users can log in.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The attacker needs local user privileges on the victim machine. The impact is arbitrary file deletion, not remote code execution based on the supplied evidence.
Researcher notes
The CVSS vector is AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H. Evidence supports arbitrary file deletion only. Do not infer remote exploitation, credential theft, or code execution from the supplied sources.
Mitigation direction
- Inventory endpoints running VMware Workstation 17.x and identify versions earlier than 17.0.1.
- Upgrade VMware Workstation to 17.0.1 or later following VMware advisory guidance.
- Limit local interactive access to systems with Workstation until upgraded.
- Monitor for unexpected deletion of sensitive files on affected endpoints.
Validation and detection
- Confirm installed VMware Workstation version on each managed endpoint.
- Verify upgraded hosts report VMware Workstation 17.0.1 or later.
- Review endpoint logs for suspicious local user activity and unexpected file deletion.
- Prioritize hosts shared by multiple users or running untrusted workloads.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-20854 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H25.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.vmware.com/security/advisories/VMSA-2023-0003.htmlCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.