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CVE-2026-42486

🗓️ 09 Jul 2026 15:16:34Reported by XENType 
cve
 cve
🔗 web.nvd.nist.gov👁 69 Views🌐 WEB

XAPI RBAC flaws let vm-admin modify settings risking dom0 file access, system domain, and related issues.

Related
Affected
Refs
Paths
ReporterTitlePublishedViews
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CVE-2026-23559
9 Jul 202615:09
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CVE-2026-42486
9 Jul 202615:16
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CVE-2026-23562
9 Jul 202615:15
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bdu_fstec
BDU FSTEC
XCP-ng Supervisor RBAC Access Bypass
20 May 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC
XCP-ng RBAC Privilege Escalation
20 May 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC
XCP-ng RBAC Storage Driver Privilege Escalation
20 May 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC
XCP-ng XenServer RBAC Bypass
20 May 202600:00
–bdu_fstec
bdu_fstec
BDU FSTEC
XCP-ng RBAC HVM Serial Write Access
20 May 202600:00
–bdu_fstec
Rows per page
[
  {
    "vendor": "Xen",
    "product": "XAPI",
    "versions": [
      {
        "status": "affected",
        "version": "all"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
ParameterPositionPathDescriptionCWE
hvm_serialpath/VM.platform:hvm_serialA vm-admin can set the VM.platform:hvm_serial parameter, which should be restricted to the pool-admin role, as it can allow arbitrary dom0 file write.CWE-250

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10 Jul 2026 05:16Current
7.6High risk
Vulners AI Score7.6
CVSS 49.4
EPSS0.00167
SSVC
69