Use after free in VMware Workstation Pro / Player
Priority LOW 31CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
VMware Workstation and Fusion contain a use-after-free vulnerability in VMware NAT service when IPv6 mode is enabled. This issue may allow a guest to execute code on the host. Note: IPv6 mode for VMNAT is not enabled by default.
Why it matters now
EPSS 0.0037 31st percentileScored 2026-11-07
Fix Fixed Workstation Pro / Player (VMware): 14.1.1, 12.5.9Fusion (VMware): 10.1.1, 8.5.10
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| VMware | Workstation Pro / Player | 14 to before 14.1.1; 12 to before 12.5.9 | 14.1.1, 12.5.9 | Patch available | CNA |
| VMware | Fusion | 10 to before 10.1.1; 8 to before 8.5.10 | 10.1.1, 8.5.10 | Patch available | CNA |
- Workstation Pro / Player VendorVMware Affected 14 to before 14.1.1; 12 to before 12.5.9 Fixed in 14.1.1, 12.5.9 Patch available CNA
- Fusion VendorVMware Affected 10 to before 10.1.1; 8 to before 8.5.10 Fixed in 10.1.1, 8.5.10 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:* | 8.0 to before 8.5.10; 10.0 to before 10.1.1 | Vulnerable | VMware |
| cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
| cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:* | 12.0 to before 12.5.9; 14.0 to before 14.1.1 | Vulnerable | VMware |
- cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:* Versions 8.0 to before 8.5.10; 10.0 to before 10.1.1 Vulnerable ·VMware
- cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
- cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:* Versions 12.0 to before 12.5.9; 14.0 to before 14.1.1 Vulnerable ·VMware
Remediation
- Fix · CNA Workstation Pro / Player (VMware) Fixed in 14.1.1, 12.5.9
- Fix · CNA Fusion (VMware) Fixed in 10.1.1, 8.5.10
Timeline
- 2026-10-02 Threatist record created from CVE-2017-4949
- 2026-10-03 Alias added: GHSA-xp8m-46mm-88p5
References
More VMware Fusion vulnerabilities
- TI-2020-03448 Improper privilege management in VMware Fusion, VMware Remote Console for Mac and Horizon… KEVCVSS 3.1HIGH 7.8
- TI-2025-16137 Out-of-bounds read in ESXi KEVCVSS 3.1HIGH 7.1
- TI-2017-03716 Observable discrepancy in Intel Most Modern Operating Systems CVSS 3.1MEDIUM 5.6
- TI-2017-03034 Memory corruption in VMware Workstation Pro/Player CVSS 3.0CRITICAL 9.9
- TI-2016-04622 Untrusted search path vulnerability in the HGFS (aka Shared Folders) feature in VMware… CVSS 3.1HIGH 7.8
- TI-2011-03420 Buffer overflow in VMware Workstation 7.x before 7.1.5, VMware Player 3.x before 3.1.5… CVSS 2.0HIGH 9.3
Sources
- CVE-2017-4949 · CVE Program
- CVE-2017-4949 · NVD
- FIRST EPSS
- GHSA-xp8m-46mm-88p5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences