CVE-2026-44812 | Windows Graphics Component Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.

Published: 2026-06-09 Last update: 2026-06-19 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-44812 is rated Moderate Risk (40.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.34%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-44812

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.10% 0.34% +0.24%
2 2026-06-10 — 0.10% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-44812

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2026-44812

GitHub Security Advisory for CVE-2026-44812

GHSA-3xgp-g57j-vc7f · Severity: high — Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to...

Affected software / configurations for CVE-2026-44812

Vendor Product Version Raw CPE
microsoft windows_10_1809 >= 10.0.17763.0, < 10.0.17763.8880 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft windows_server_2019 >= 10.0.17763.0, < 10.0.17763.8880 cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft windows_server_2022 >= 10.0.20348.0, < 10.0.20348.5256 cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft windows_10_21H2 >= 10.0.19044.0, < 10.0.19044.7417 cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*
microsoft windows_10_22H2 >= 10.0.19045.0, < 10.0.19045.7417 cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*
microsoft windows_server_2025 >= 10.0.26100.0, < 10.0.26100.32995 cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
microsoft windows_11_25H2 >= 10.0.26200.0, < 10.0.26200.8655 cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
microsoft windows_11_23H2 >= 10.0.22631.0, < 10.0.22631.7219 cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
microsoft windows_11_23H2 >= 10.0.22631.0, < 10.0.22631.7219 cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
microsoft windows_11_24H2 >= 10.0.26100.0, < 10.0.26100.8655 cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
microsoft windows_11_26H1 >= 10.0.28000.0, < 10.0.28000.2269 cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
microsoft windows_10_1607 >= 10.0.14393.0, < 10.0.14393.9234 cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft windows_server_2016 >= 10.0.14393.0, < 10.0.14393.9234 cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft windows_server_2012 >= 6.2.9200.0, < 6.2.9200.26132 cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
microsoft windows_server_2012_R2 >= 6.3.9600.0, < 6.3.9600.23228 cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
microsoft excel >= 16.0.0.0, < 16.0.20131.20024 cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:*
microsoft powerpoint >= 16.0.0.0, < 16.0.20131.20024 cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:android:*:*
microsoft word >= 16.0.0.0, < 16.0.20131.20024 cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:*

References for CVE-2026-44812

cvelogic Threat Intelligence