CVE-2025-48809
Windows Secure Kernel Mode Information Disclosure Vulnerability
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Windows Secure Kernel Mode Information Disclosure Vulnerability
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
- Record
CVE-2025-48809- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-1037
- Updated
- 2026-11-02
EUVDEUVD-2025-20596
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
- Record
EUVD-2025-20596- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-58c9-xg8g-x33q
Processor optimization removal or modification of security-critical code in Windows Kernel allows...
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
- Record
GHSA-58c9-xg8g-x33q- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-1037
- Updated
- 2026-11-02
NVD
Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.
- Record
CVE-2025-48809- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-1037
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-48809 is a medium vulnerability (CVSS 5.5) in Microsoft Windows 11 Version 24h2, published July 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. No source names a fixed version.