Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local-only GDI+ access requires low-privileged session (PR:L, AV:L); no integrity or availability impact, only memory disclosure (C:H, I:N, A:N).
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use of uninitialized resource in Windows GDI+ allows an authorized attacker to disclose information locally.
AnalysisAI
Windows GDI+ (Graphics Device Interface Plus) exposes uninitialized memory contents to local low-privileged attackers across a broad range of Windows desktop and server releases, from Windows Server 2012 through Windows 11 26H1. The root cause is CWE-908 (use of uninitialized resource), where a graphics operation returns memory that has not been zeroed or populated, potentially leaking sensitive in-memory data. No active exploitation is confirmed and CISA SSVC rates exploitation as none; however, the wide affected surface and high confidentiality impact make this a priority patch in shared-access environments such as RDP or VDI deployments.
Technical ContextAI
GDI+ is the Windows subsystem responsible for 2D graphics rendering, image processing, and text layout; it is loaded into virtually every Windows process that draws a GUI. CWE-908 (Use of Uninitialized Resource) describes a condition where allocated memory or a resource handle is consumed before being properly set to a defined state, causing the consumer to read whatever data previously occupied that memory region - potentially fragments of other processes' heap, stack frames, or kernel-adjacent buffers. The CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N confirms: the flaw is only reachable locally, requires no elevated privileges (a standard user account suffices), needs no user interaction to trigger, does not cross a privilege boundary (S:U), and produces high confidentiality exposure with no integrity or availability impact. Affected product versions span CPE ranges from Windows 10 build 10.0.14393.x through Windows 11 26H1 build 10.0.28000.x, plus Windows Server 2012 through 2025, as confirmed by ENISA EUVD-2026-56632.
RemediationAI
Apply the vendor-released patch via Windows Update, WSUS, or Microsoft Update Catalog as documented in the Microsoft MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62709. Target patched build numbers per EUVD data are: Windows Server 2025 to 10.0.26100.33296 or later, Windows Server 2022 to 10.0.20348.5499 or later, Windows Server 2019 to 10.0.17763.9115 or later, Windows Server 2016 to 10.0.14393.9418 or later, Windows Server 2012 R2 to 6.3.9600.23337 or later, Windows Server 2012 to 6.2.9200.26279 or later, Windows 11 26H1 to 10.0.28000.2704 or later, Windows 11 25H2 to 10.0.26200.9168 or later, Windows 11 24H2 to 10.0.26100.9168 or later, Windows 11 23H2 to 10.0.22631.7517 or later, Windows 10 22H2/21H2 to 10.0.19045.7663 or 10.0.19044.7663 or later, and Windows 10 1607/1809 to 10.0.14393.9418 or 10.0.17763.9115 or later. Note that Windows Server 2012 and 2012 R2 are in extended support phases and require active Extended Security Update (ESU) enrollment to receive this patch; organizations without ESU coverage should prioritize isolation of these systems and restrict local user login rights as a compensating control. Where immediate patching is not possible, restrict RDP and terminal services access to named accounts only and audit local group memberships to remove unnecessary standard user accounts from sensitive servers - this directly reduces the pool of potential attackers able to reach the vulnerable code path.
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Same weakness CWE-908 – Use of Uninitialized Resource
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-56632
GHSA-5vqj-2xhw-vxhg