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VulnerabilityPublished

CVE-2026-22717: VMware Workstation · Out-of-bounds Read

Affects VMware WorkstationSource CVE Database V5

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Not known to be exploited · CVSS 2.7 Low : upgrade to 25H1U1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
2.7Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 25H1U1
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade VMware Workstation to 25H1U1.

Affected software

ProductAffectedFixed in
VMwareWorkstationAffected
  • >=25H2 <25H1U1
Fixed in
  • 25H1U1

AI-suggested

To mitigate CVE-2026-22717, organizations should implement strict access controls to limit who can operate guest VMs, ensuring only trusted users have access. Disable or restrict features that allow guest-to-host communication unless absolutely necessary. Monitor guest VM activity for unusual behavior that could indicate exploitation attempts. Apply the principle of least privilege within guest VMs to reduce the potential impact of compromised guest accounts. VMware should be monitored for official patches or updates addressing this vulnerability, and these should be applied promptly once available. In the interim, consider isolating critical host systems from environments where untrusted guest VM users operate. Employ network segmentation and host-based intrusion detection systems to detect anomalous access patterns. Additionally, educate users about the risks of interacting with untrusted guest VMs and enforce policies to prevent unauthorized software execution within guest environments.

Description

Out-of-bound read vulnerability in VMware Workstation 25H1 and below on any platform allows an actor with non-administrative privileges on a guest VM to obtain limited information disclosure from the machine where VMware Workstation is installed.

References

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