What is the CVSS score of CVE-2026-2321?

CVE-2026-2321 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-2321?

Within 24 hours: inventory Chrome versions across the organization and identify systems running versions prior to 145.0.7632.45. Within 7 days: deploy Chrome 145.0.7632.45 or later through your patch management system to all endpoints; prioritize high-risk users (finance, executives, development teams). Within 30 days: verify 100% compliance with the minimum version requirement and document update completion for audit records.

Chrome CVE-2026-2321

HIGH

Use After Free (CWE-416)

2026-02-11 chrome-cve-admin@google.com

Chrome Google Use After Free Red Hat Suse

8.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Craft malicious HTML page
Delivery

Convince user to perform specific UI gestures
Exploit

Trigger use-after-free in Ozone
Execution

Corrupt heap memory
Impact

Execute arbitrary code

Vulnerability Assessment

Weakness	CWE CWE-416 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Memory lifecycle management MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	User must engage in specific UI gestures (e.g., mouse interactions, keyboard actions) while viewing attacker-controlled HTML in Google Chrome versions prior to 145.0.7632.45. Requires user interaction but no authentication or special browser configuration.
Impact	CVSS 8.8 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitable via remote/network.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

Heap corruption in Google Chrome's Ozone component (versions prior to 145.0.7632.45) stems from a use-after-free vulnerability that can be triggered when users interact with malicious HTML pages through specific UI gestures. An unauthenticated remote attacker can exploit this to achieve arbitrary code execution with high impact on confidentiality, integrity, and availability. No patch is currently available, leaving affected Chrome users vulnerable to exploitation.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:02 CVSS 8.8

Use after free in Ozone in Google Chrome prior to 145.0.7632.45 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium) [CVSS 8.8 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-416 (Use After Free). Affects Chrome. Use after free in Ozone in Google Chrome prior to 145.0.7632.45 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

Know when Chrome gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SUSE HIGH

Red Hat 6.5 MEDIUM

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 09, 2026 - 20:30 nvd

Patch available

CVE Published

Feb 11, 2026 - 19:15 nvd

HIGH 8.8

DescriptionCVE.org

Executive ViewAI

Why It Matters

A use-after-free vulnerability in Google Chrome versions prior to 145.0.7632.45 could allow attackers to corrupt heap memory and potentially execute arbitrary code if users interact with malicious websites. Organizations should prioritize Chrome updates immediately, as this vulnerability requires user interaction but poses significant risk to endpoints and data confidentiality.

Business Impact: High

Compensating Controls

Until patching is complete: restrict access to untrusted websites via proxy/firewall policies; implement web content filtering to block high-risk domains; disable JavaScript execution where operationally feasible; educate users to avoid clicking suspicious links and downloading files from untrusted sources; monitor endpoint logs for suspicious Chrome process behavior; consider restricting Chrome to authenticated corporate sites only during the transition period.

Threat Intelligence Overview

EPSS Score

0.1%

Top 70% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS Vendor

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Use After Free HIGH

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

Affected Products (CPE)CVE.org

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

More in Chrome

View all

CVE-2015-5122 CRITICAL Emergency POC

9.8 Jul 14

Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player

CVE-2016-5198 HIGH Act Now POC

8.8 Jan 19

V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac

CVE-2017-5070 HIGH Act Now POC

8.8 Oct 27

Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a

CVE-2016-1646 HIGH Act Now POC

8.8 Mar 29

The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do

CVE-2013-0758 CRITICAL Emergency POC

9.3 Jan 13

Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb

CVE-2017-5030 HIGH Act Now POC

8.8 Apr 24

Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.

CVE-2012-3993 CRITICAL Emergency POC

9.3 Oct 10

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi

CVE-2017-3823 HIGH Act Now POC

8.8 Feb 01

An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta

CVE-2014-8636 HIGH Act Now POC

7.5 Jan 14

The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with

CVE-2013-0757 CRITICAL Emergency POC

9.3 Jan 13

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi

CVE-2014-1510 CRITICAL Emergency POC

9.8 Mar 19

The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se

CVE-2015-5123 CRITICAL Emergency

9.8 Jul 14

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13

Same weakness CWE-416 – Use After Free

View all

CVE-2019-0708 CRITICAL POC

9.8

CVE-2015-5119 CRITICAL POC

9.8

CVE-2014-0322 HIGH POC

8.8

CVE-2012-4792 HIGH POC

8.8

CVE-2009-4324 HIGH POC

7.8

CVE-2015-0313 CRITICAL POC

9.8

CVE-2013-2551 HIGH POC

8.8

Same technique Use After Free

View all

CVE-2012-4969 HIGH POC

8.1

Vendor StatusVendor

SUSE

Severity: High

Product	Status
SUSE Package Hub 15 SP6	Fixed
openSUSE Leap 15.6	Fixed
openSUSE Leap 16.0	Fixed
openSUSE Tumbleweed	Fixed
SUSE Package Hub 15 SP6	Fixed

References

Advisories & patches

ADVISORY https://chromereleases.googleblog.com/2026/02/stable-channel-update-for-desktop_10.html REF https://issues.chromium.org/issues/461877477

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back