cvelistv5 - cve-2025-27462

CVE-2025-27462 (GCVE-0-2025-27462)

Vulnerability from cvelistv5

Published

2026-07-09 14:27

Modified

2026-07-09 16:06

Severity ?

9.4 (Critical) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-276 - Incorrect default permissions

Summary

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The Windows PV drivers expose various facilities to userspace. Several of these have no security descriptor, and are therefore fully accessible to unprivileged users. These are: 1. XenCons, CVE-2025-27462 2. XenIface, CVE-2025-27463 3. XenBus, CVE-2025-27464

References

URL

Tags

https://xenbits.xen.org/xsa/advisory-468.html

Impacted products

	Vendor	Product	Version
	Xen	Windows PV drivers	Version: all

Show details on NVD website

JSON

To clipboard

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                "role": "CISA Coordinator",
                "timestamp": "2026-07-09T16:06:53.503103Z",
                "version": "2.0.3"
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            "Windows"
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          "product": "Windows PV drivers",
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            "attackVector": "LOCAL",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
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          "url": "https://xenbits.xen.org/xsa/advisory-468.html"
        }
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      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "WinPVDrivers: Excessive permissions on user-exposed devices",
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  "cveMetadata": {
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CERTFR-2025-AVI-0456

Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans Citrix et Xen. Elles permettent à un attaquant de provoquer une élévation de privilèges.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
XEN	Xen	Windows xeniface sans le correctif de sécurité xsa468/xeniface-0x.patch
XEN	Xen	Windows xencons sans le correctif de sécurité xsa468/xencons-0x.patch
Citrix	XenServer	XenServer VM Tools versions antérieures à 9.4.1 pour Windows
XEN	Xen	Windows xenbus sans le correctif de sécurité xsa468/xenbus-01.patch

References

Title

Publication Time

Tags

Bulletin de sécurité Xen xsa/advisory-468	2025-05-27	vendor-advisory
Bulletin de sécurité Citrix CTX692748	2025-05-27	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Windows xeniface sans le correctif de s\u00e9curit\u00e9 xsa468/xeniface-0x.patch",
      "product": {
        "name": "Xen",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    },
    {
      "description": "Windows xencons sans le correctif de s\u00e9curit\u00e9 xsa468/xencons-0x.patch ",
      "product": {
        "name": "Xen",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    },
    {
      "description": "XenServer VM Tools versions ant\u00e9rieures \u00e0 9.4.1 pour Windows",
      "product": {
        "name": "XenServer",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "Windows xenbus sans le correctif de s\u00e9curit\u00e9 xsa468/xenbus-01.patch",
      "product": {
        "name": "Xen",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2025-27464",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-27464"
    },
    {
      "name": "CVE-2025-27463",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-27463"
    },
    {
      "name": "CVE-2025-27462",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-27462"
    }
  ],
  "initial_release_date": "2025-05-28T00:00:00",
  "last_revision_date": "2025-05-28T00:00:00",
  "links": [],
  "reference": "CERTFR-2025-AVI-0456",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2025-05-28T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix et Xen. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix et Xen",
  "vendor_advisories": [
    {
      "published_at": "2025-05-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Xen xsa/advisory-468",
      "url": "https://xenbits.xen.org/xsa/advisory-468.html"
    },
    {
      "published_at": "2025-05-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX692748",
      "url": "https://support.citrix.com/s/article/CTX692748-xenserver-and-citrix-hypervisor-security-update-for-cve202527462-cve202527463-cve202527464"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2025-27462 (GCVE-0-2025-27462)

Vulnerability from cvelistv5

CERTFR-2025-AVI-0456

Vulnerability from certfr_avis

Solutions

Tags

Sightings

Nomenclature