CVE-2017-4949 json
VMware Workstation and Fusion contain a use-after-free vulnerability in VMware NAT service when IPv6 mode is enabled.
published 2018-01-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14066
- cvss
- 7.0
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
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.
Patch / fix
- vmware fusion 8.5.10, 10.1.1
- vmware workstation 12.5.9, 14.1.1
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- VMware Workstation Pro / Player
- VMware Fusion
Classification
- Weakness
-
- CWE-416 Use After Free
- Technology feeds
References
-
vmware.com
/security/advisories/VMSA-2018-0005.html
patch, vendor-advisory
-
securitytracker.com
/id/1040161
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/102489
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-4949
- NVD CVE-2017-4949
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