github - ghsa-hc7x-m44m-xhxq

GHSA-HC7X-M44M-XHXQ

Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-09-15 18:31

Details

Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-48799"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-08T17:15:42Z",
    "severity": "HIGH"
  },
  "details": "Improper link resolution before file access (\u0027link following\u0027) in Windows Update Service allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-hc7x-m44m-xhxq",
  "modified": "2025-09-15T18:31:05Z",
  "published": "2025-07-08T18:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48799"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799"
    },
    {
      "type": "WEB",
      "url": "https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service"
    },
    {
      "type": "WEB",
      "url": "https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-48799 (GCVE-0-2025-48799)

Vulnerability from cvelistv5 – Published: 2025-07-08 16:57 – Updated: 2025-09-15 17:45

Summary

Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

microsoft

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerabi…

vendor-advisory

Impacted products

Vendor

Product

Version

Microsoft

Windows 10 Version 1809

Affected: 10.0.17763.0 , < 10.0.17763.7558 (custom)

Microsoft	Windows 10 Version 21H2	Affected: 10.0.19044.0 , < 10.0.19044.6093 (custom)
Microsoft	Windows 11 version 22H2	Affected: 10.0.22621.0 , < 10.0.22621.5624 (custom)
Microsoft	Windows 10 Version 22H2	Affected: 10.0.19045.0 , < 10.0.19045.6093 (custom)
Microsoft	Windows Server 2025 (Server Core installation)	Affected: 10.0.26100.0 , < 10.0.26100.4652 (custom)
Microsoft	Windows 11 version 22H3	Affected: 10.0.22631.0 , < 10.0.22631.5624 (custom)
Microsoft	Windows 11 Version 23H2	Affected: 10.0.22631.0 , < 10.0.22631.5624 (custom)
Microsoft	Windows 11 Version 24H2	Affected: 10.0.26100.0 , < 10.0.26100.4652 (custom)
Microsoft	Windows Server 2025	Affected: 10.0.26100.0 , < 10.0.26100.4652 (custom)
Microsoft	Windows 10 Version 1607	Affected: 10.0.14393.0 , < 10.0.14393.8246 (custom)

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HC7X-M44M-XHXQ

CVE-2025-48799 (GCVE-0-2025-48799)

Tags

Sightings

Nomenclature