01 Record
CVE-2025-48799
Windows Update Service Elevation of Privilege Vulnerability
HighPUBLISHEDCNA: microsoft
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
02 Description
Windows Update Service Elevation of Privilege Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 1.25% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 69.3% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-07-08 16:57Z1 YR AGO
- Last updated
- 2026-02-13 19:07Z8 MO AGO
- Reserved
- 2025-05-26
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- 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
- Weaknesses
- CWE-59Improper Link Resolution Before File Access ('Link Following')Base
- Data version
- 5.2
- Document digest
- 4de4dd3380f680d9dabb55756e2165306ad577af5704caa8ca6aada5dc2f44b3
05 Affected products
VendorProductVersionsPlatforms
MicrosoftWindows 10 Version 21H210.0.19044.0 to < 10.0.19044.609332-bit Systems, ARM64-based Systems, x64-based Systems
MicrosoftWindows 10 Version 22H210.0.19045.0 to < 10.0.19045.609332-bit Systems, ARM64-based Systems, x64-based Systems
MicrosoftWindows 11 version 22H210.0.22621.0 to < 10.0.22621.5624ARM64-based Systems, x64-based Systems
MicrosoftWindows 11 Version 24H210.0.26100.0 to < 10.0.26100.4652ARM64-based Systems, x64-based Systems
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to < 10.0.26100.4652x64-based Systems
06 References
- msrc.microsoft.comWindows Update Service Elevation of Privilege Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799
- www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service
- www.vicarius.iohttps://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service