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CVE-2026-56645

HIGH

8.8

CVSS 3.1

Metadata

CVE ID: CVE-2026-56645
State: PUBLISHED
Assigner: microsoft
Reserved: 2026-06-22 15:17 UTC
Published: 2026-07-03 20:35 UTC
Last updated: 2026-07-03 21:26 UTC
Primary CWE: CWE-122
CWE-122: Heap-based Buffer Overflow
Vendor / Product: Microsoft / Microsoft Edge (Chromium-based)
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected products (1)

Vendor	Product	Platform	Versions
Microsoft	Microsoft Edge (Chromium-based)	—	1.0.0.0 < 150.0.4078.48

Weakness (CWE)

CWE	Source	Description
CWE-122	cna	CWE-122: Heap-based Buffer Overflow

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References (1)

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56645

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