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CVE-2023-20900

25
FAUCET Score

CVE-2023-20900 is a privilege escalation vulnerability affecting VMware products, Debian, Fedora, Linux, Microsoft, and NetApp, where a malicious actor with Guest Operation Privileges in a VM can elevate their privileges if the VM has a more privileged Guest Alias assigned. Rated 7.5 HIGH, this vulnerability has an adjacent attack vector and high attack complexity, allowing for potential compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.3.0, < 12.3.0CPE matchmatch criteria
cpe:2.3:a:vmware:tools:*:*:*:*:*:*:*:*
>= 10.3.0, < 10.3.26CPE matchmatch criteria
cpe:2.3:a:vmware:tools:*:*:*:*:*:*:*:*
>= 10.3.0, < 12.3.0CPE matchmatch criteria
cpe:2.3:a:vmware:open_vm_tools:*:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 81st percentile among its peer group of 239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (14)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: open-vm-tools-0:11.3.5-1.el9_0.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: open-vm-tools-0:11.0.5-3.el7_9.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.7 Advanced Update SupportFixed in: open-vm-tools-0:10.3.0-2.el7_7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: open-vm-tools-0:12.1.5-2.el8_8.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: open-vm-tools-0:10.3.10-3.el8_1.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: open-vm-tools-0:11.0.0-4.el8_2.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: open-vm-tools-0:11.0.0-4.el8_2.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: open-vm-tools-0:11.0.0-4.el8_2.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: open-vm-tools-0:11.2.0-2.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: open-vm-tools-0:11.2.0-2.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: open-vm-tools-0:11.2.0-2.el8_4.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: open-vm-tools-0:11.3.5-1.el8_6.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: open-vm-tools-0:12.1.5-1.el9_2.3
View patch
vmwarepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2023-20900Important

open-vm-tools: SAML token signature bypass

Aug 31, 2023

References

lists.debian.org / debian-lts-announce/2023/10/msg00000.html
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W
Mailing List
lists.fedoraproject.org / archives/list/[email protected]/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH
Mailing List
security.netapp.com / advisory/ntap-20231013-0002
Third Party Advisory
debian.org / security/2023/dsa-5493
Third Party Advisory
vmware.com / security/advisories/VMSA-2023-0019.html
PatchVendor Advisory
openwall.com / lists/oss-security/2023/08/31/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2023/10/27/1
Mailing ListPatch