CVE-2026-9939

Heap buffer overflow in WebCodecs in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html	Release Notes Vendor Advisory
https://issues.chromium.org/issues/502735235	Permissions Required

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*

History

No history.

Information

Published : 2026-05-28 23:16

Updated : 2026-07-21 11:10

NVD link : CVE-2026-9939

Mitre link : CVE-2026-9939

CVE.ORG link : CVE-2026-9939

JSON object : View

Products Affected

linux

linux_kernel

microsoft

windows

google

chrome

apple

macos

CWE

CWE-122

Heap-based Buffer Overflow

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