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Severity by source

Vendor (microsoft) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CIRCL (temporal)
6.8 MEDIUM
cvss

Primary rating from Vendor (microsoft).

CVSS VectorVendor: microsoft

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 18:31 vuln.today
CVE Published
Jul 14, 2026 - 17:05 nvd
HIGH 7.8

DescriptionCVE.org

Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.

AnalysisAI

Local code execution in Windows GDI+ (the Graphics Device Interface Plus rendering component) affects a broad range of Microsoft Windows client and server releases from Windows 10 1607 through Windows 11 26H1 and Windows Server 2012 through Server 2025. An attacker who convinces a user to open or preview a specially crafted image or document triggers a heap-based buffer overflow (CWE-122) during graphics parsing, yielding arbitrary code execution in the context of the current user. The CVSS 3.1 base score is 7.8 (AV:L/AC:L/PR:N/UI:R); there is no public exploit identified at time of analysis and it is not listed in CISA KEV, but GDI+ image-parsing flaws are historically attractive to attackers.

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CVE-2026-49796 vulnerability details – vuln.today

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