CVE-2023-20867VMware Tools Authentication Bypass Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects VMware Tools and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jun 23, 2023; federal agencies had to remediate by Jul 14, 2023. Treat that date as your deadline.
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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.
- CVSS
- 3.9 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-287
- Known exploited
- Added to CISA KEV Jun 23, 2023; federal remediation due Jul 14, 2023Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 13.53% (percentile 96)
- Assigned by
- vmware
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
VMware VMware Tools vmware:tools (from the name) | 12.2.5 not affected | CNA record |
vmware tools vmware:tools | from 10.3.0 before 12.2.5 | NVD |
debian debian_linux debian:debian_linux | 10.0; 11.0; 12.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 37; 38; 39 | NVD |
References
- https://www.vmware.com/security/advisories/VMSA-2023-0013.htmlpatch, vendor-advisory
- https://security.netapp.com/advisory/ntap-20230725-0001/third-party-advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlmailing-list, third-party-advisory
- https://www.debian.org/security/2023/dsa-5493mailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/mailing-list, release-notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/mailing-list, release-notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/mailing-list, release-notes
- http://www.openwall.com/lists/oss-security/2023/10/16/2mailing-list, patch
- http://www.openwall.com/lists/oss-security/2023/10/16/11mailing-list, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20867us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.