CVE-2026-7978

HIGH EPSS 14.5%

Published May 6, 20261mo ago · Modified Jun 17, 20262w ago

8.1 CVSS 3.1

High

Published May 6, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

Description

Inappropriate implementation in Companion in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to perform OS-level privilege escalation via malicious network traffic. (Chromium security severity: Medium)

CVSS Details

Base Score

8.1

Exploitability

2.2

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

14.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-693

Affected Products 2

Vendor	Product	Version	Range
google	chrome	*	<148.0.7778.96
apple	macos	*	any

References 2

chromereleases.googleblog.com https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html

Vendor Advisory
issues.chromium.org https://issues.chromium.org/issues/497828892

Issue TrackingPermissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.