CVE-2026-50420
HTTP.sys Information Disclosure Vulnerability
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
HTTP.sys Information Disclosure Vulnerability
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-50420- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-44070
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
- Record
EUVD-2026-44070- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3phq-4j2m-c959
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information...
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
- Record
GHSA-3phq-4j2m-c959- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.
- Record
CVE-2026-50420- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - 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-125
- 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-2026-50420 is a medium vulnerability (CVSS 6.2) in Microsoft Windows 11 Version 24h2, published July 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.