CVE-2026-59309 in the critical feed json
vCenter authentication-bypass vulnerability
published 3mo ago modified 2mo ago also EUVD-2026-51098
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system.
Patch / fix
- VMware vCenter 8.0 U3k, 9.0.2.0100, 9.1.0.0300
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 3mo ago
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- VMware Cloud Foundation
- VMware vSphere Foundation
- VMware vCenter
- VMware Telco Cloud Infrastructure
- VMware Telco Cloud Platform
Classification
- Weakness
-
- CWE-303 Incorrect Implementation of Authentication Algorithm
- Technology feeds
References
Sources
- CVE List CVE-2026-59309
- NVD CVE-2026-59309
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.