Vulnerability · NVD
CVE-2026-78455
CVE-2026-78455 : high severity (CVSS 4.3). No tracked catalog app is linked to this CVE.
- Severity (CVSS)
- 4.3
- Exploitation
- 0.5 %
- Tracked apps
- 0
- Still exposed
- 0
Base CVSS ; severity is a vendor rating (different scale)
EPSS, predicted over 30 days
Vendor bulletin scale : NVD CVSS pending
Xbox Information Disclosure Vulnerability
EPSS
0.51%
exploit very unlikely
percentile 42.0%
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Server 2019 Fixed in 10.0.17763.9245
- Windows Server 2016 Fixed in 10.0.14393.9512
- Windows 11 26H1 · 2026-H1 Fixed in 10.0.28000.2954
- Windows 11 25H2 · 2025-H2 Fixed in 10.0.26200.9445
- Windows 11 24H2 · 2024-H2 Fixed in 10.0.26100.9445
- Windows 11 23H2 · 2023-H2 Fixed in 10.0.22631.7582
- Windows 10 22H2 · 2022-H2 Fixed in 10.0.19045.7725
- Windows 10 21H2 · 2021-H2 Fixed in 10.0.19044.7725
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.9245
- Windows 10 1607 · 2016-07 Fixed in 10.0.14393.9512