CVE-2023-20900

⚠️ high

Summary

A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html .

CVSS Score

7.1

High

EPSS Score

0.8

Exploit Probability

Published Date

2023-08-31

First Seen: 2026-01-05

📊 Relative Risk Intelligence

This CVE is Moderate Risk - more severe than 53.4% of all 322,139 vulnerabilities in our database.

#150,107

Above average severity

Severity Percentile

Last Modified 2024-11-21

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-294

📦 Affected Products 10

Vendor	Product	Status	Affected Versions
debian	debian_linux	Affected	v10.0
debian	debian_linux	Affected	v11.0
debian	debian_linux	Affected	v12.0
fedoraproject	fedora	Affected	v37
fedoraproject	fedora	Affected	v38
fedoraproject	fedora	Affected	v39
vmware	tools	Affected	≥ 10.3.0 < 10.3.26
vmware	tools	Affected	≥ 10.3.0 < 12.3.0
netapp	ontap_select_deploy_administration_utility	Affected	v-
vmware	open_vm_tools	Affected	≥ 10.3.0 < 12.3.0

🔗 References 9

http://www.openwall.com/lists/oss-security/2023/08/31/1

Mailing List Third Party Advisory

http://www.openwall.com/lists/oss-security/2023/10/27/1

Mailing List Patch

https://lists.debian.org/debian-lts-announce/2023/10...

Mailing List

https://lists.fedoraproject.org/archives/list/packag...

Mailing List

https://lists.fedoraproject.org/archives/list/packag...

Mailing List

https://lists.fedoraproject.org/archives/list/packag...

Mailing List

https://security.netapp.com/advisory/ntap-20231013-0...

Third Party Advisory

https://www.debian.org/security/2023/dsa-5493

Third Party Advisory

https://www.vmware.com/security/advisories/VMSA-2023...

Patch Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-31431	⚠️ high	7.8	2.6	In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-pla...	2026-04-22
CVE-2026-35093	⚠️ high	8.8	0.0	A flaw was found in libinput. A local attacker who can place a specially crafted Lua bytecode file in certain system or ...	2026-04-01
CVE-2026-35094	ℹ️ low	3.3	0.0	A flaw was found in libinput. An attacker capable of deploying a Lua plugin file in specific system directories can expl...	2026-04-01
CVE-2026-4775	⚠️ high	7.8	0.0	A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the ...	2026-03-24
CVE-2026-1940	🔶 medium	5.1	0.0	An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added...	2026-03-23
CVE-2025-63261	⚠️ high	7.8	0.1	AWStats 8.0 is vulnerable to Command Injection via the open function	2026-03-20

These CVEs affect the same products