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EPSS 0.3%top 78%

CVE-2026-9873: Use after free in Google Chrome

0
High
VulnerabilityCVE-2026-9873cvecve-2026-9873
Published: 05/28/2026 (05/28/2026, 22:25:07 UTC)
Source: CVE Database V5
Vendor/Project: Google
Product: Chrome

Description

CVE-2026-9873 is a use-after-free vulnerability in the Network component of Google Chrome versions prior to 148.0.7778.216. This flaw allows a remote attacker to execute arbitrary code within the sandbox by delivering a crafted HTML page. The vulnerability is rated with a high severity and a CVSS score of 8.8. There are no known exploits in the wild at the time of reporting. The vendor has published an advisory but has not explicitly stated the remediation level or patch availability in the provided data.

CVSS v3.1

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

GitHub Actionsmore threats →ai
chromium/chromium
pkg:github/chromium/chromium
Affected versions
<148.0.7778.216

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/05/2026, 21:09:17 UTC

Technical Analysis

This vulnerability involves a use-after-free condition in the Network module of Google Chrome before version 148.0.7778.216. Exploitation requires a user interaction (UI:R) and can be triggered remotely via a specially crafted HTML page, potentially allowing arbitrary code execution within the sandbox environment. The CVSS vector indicates the attack complexity is low, no privileges are required, and the impact on confidentiality, integrity, and availability is high. The vulnerability was publicly disclosed on May 28, 2026, with a vendor advisory linked but without explicit patch status in the provided data.

Potential Impact

Successful exploitation could allow a remote attacker to execute arbitrary code inside the sandboxed environment of the browser, potentially compromising confidentiality, integrity, and availability of the affected system. The high CVSS score (8.8) reflects the significant risk posed by this vulnerability. However, no known exploits have been reported in the wild so far.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html for current remediation guidance. Users and administrators should monitor this advisory closely and apply updates from Google Chrome as soon as they become available to mitigate this vulnerability.

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Technical Details

Data Version
5.2
Assigner Short Name
Chrome
Date Reserved
2026-05-28T17:24:40.616Z
Cvss Version
null
State
PUBLISHED
Remediation Level
null
Vendor Advisory Urls
[{"url":"https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html","vendor":"Google"}]

Threat ID: 6a18c654e29bf47b503b4eb8

Added to database: 05/28/2026, 22:48:52 UTC

Last enriched: 06/05/2026, 21:09:17 UTC

Last updated: 07/31/2026, 19:23:00 UTC

Views: 52

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