CVE-2026-41709 (GCVE-0-2026-41709)
Vulnerability from cvelistv5 – Published: 2026-07-30 12:45 – Updated: 2026-10-29 03:56Title
ESX insufficient logging vulnerability
Summary
VMware ESX contains an insufficient logging vulnerability. A malicious administrator could exploit this issue to perform certain operations without them being logged.
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 00:00 UTC
CWE
- CWE-778 - Insufficient logging
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.broadcom.com/web/ecx/support-cont… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| VMware | Cloud Foundation |
Affected:
9.1.x.x
Affected: 9.0.x.x Affected: 5.x , < 5.2.4 (custom) |
guessed | |
| VMware | vSphere Foundation |
Affected:
9.1.x.x
Affected: 9.0.x.x |
guessed | |
| VMware | ESX |
Affected:
9.1.x.x , < ESXi-9.1.0.0-25370933
(custom)
Affected: 9.0.x.x , < ESXi-9.0.2.0100-25595025 (custom) Affected: 8.0 , < ESXi80U3j-25429389 (custom) |
guessed | |
| VMware | Telco Cloud Platform |
Affected:
5.1.x
Affected: 5.0.x |
guessed |
Date Public
2026-07-29 04:30
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 85b0dda2-9734-4735-9db9-bdda1bc569b2
Exploited: Yes
Timestamps
First Seen: 2026-10-28
Asserted: 2026-10-28
Scope
Notes: Broadcom VMWare ESX Insufficient Logging Vulnerability | Affected: Broadcom / VMware ESX | Description: Broadcom VMWare ESX contains an insufficient logging vulnerability that could allow a malicious actor with admin access to perform certain operations without being logged. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-11-11 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017 ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-41709
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-778 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | VMware ESX |
| Due Date | 2026-11-11 |
| Date Added | 2026-10-28 |
| Vendorproject | Broadcom |
| Vulnerabilityname | Broadcom VMWare ESX Insufficient Logging Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-10-28 20:00 UTC
| Updated: 2026-10-28 20:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 83ed2b3d-e914-4919-ad52-e53c5926a9da
Exploited: Yes
Timestamps
First Seen: 2026-10-28
Asserted: 2026-10-28
Scope
Notes: ESX insufficient logging vulnerability | Affected: VMware / Cloud Foundation, vSphere Foundation, ESX, Telco Cloud Platform | CVSS: 2.7 (LOW) | EPSS: 0.00297 | Used in malware: unknown | Listed 4 hours ahead of CISA KEV | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | ESX insufficient logging vulnerability |
| Cve Id | CVE-2026-41709 |
| Vendor | VMware |
| Ghsa Id | None |
| Product | Cloud Foundation, vSphere Foundation, ESX, Telco Cloud Platform |
| Added Date | 2026-10-28T15:24:00.000Z |
| Cvss Score | 2.7 |
| Epss Score | 0.00297 |
| Previous Ids | |
| Cvss Severity | LOW |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.22291 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2026-41709 |
| Ahead Of Cisa Kev |
|
| Not Yet In Cisa Kev | False |
References
Created: 2026-10-29 16:01 UTC
| Updated: 2026-10-29 16:01 UTC
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},
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"time": "2026-10-28T00:00:00.000Z",
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"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.