CVE-2026-88217
Windows Graphics Kernel Information Disclosure Vulnerability
Use of uninitialized resource in Windows Graphics 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 Graphics Kernel Information Disclosure Vulnerability
Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to disclose information locally.
- Record
CVE-2026-88217- 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-908
- Updated
- 2026-11-12
EUVDEUVD-2026-121533
Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to disclose information locally.
- Record
EUVD-2026-121533- 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
- 2026-11-12
GitHub AdvisoriesGHSA-p9v2-62qm-cqx2
Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to...
Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to disclose information locally.
- Record
GHSA-p9v2-62qm-cqx2- 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-908
- Updated
- 2026-11-10
NVD
Use of uninitialized resource in Windows Graphics Kernel allows an authorized attacker to disclose information locally.
- Record
CVE-2026-88217- 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-908
- Updated
- 2026-11-11
Affected products
- microsoft office 365 for mac
- microsoft office for android
- microsoft office ltsc for mac 2021
- microsoft office ltsc for mac 2024
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows 11 version 26h1
Show 8 moreShow less
- microsoft windows 11 version 26h2
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
History
| Recorded | Changed | Sources |
|---|---|---|
| products | CVE List, NVD | |
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-88217 is a medium vulnerability (CVSS 5.5) in Microsoft Office 365 For Mac, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. No source names a fixed version.