Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2026-11645

Chrome

Google / Chrome · affected before 149.0.7827.103

Watch CVE-2026-11645 Browse KEV feed
Severity
CVSS 8.8 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
2.4%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-11645 is an unauthenticated vulnerability affecting Google Chrome. Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

Google / Chrome affected before 149.0.7827.103.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Chrome

Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Google Affected
Chrome
Before 149.0.7827.103
Published
08 Jun 2026
Exploitation Reported
09 Jun 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
Required

Tags

cisa

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Hacker News

Recorded 09 Jun 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Hacker News First 2026-06-09 13:20 UTC
CISA 2026-06-09 18:01 UTC
CVE 2026-06-09 18:01 UTC
All CISA Advisories 2026-06-09 20:20 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.8 High

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

2.4%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Out-of-bounds Read CWE-125 Out-of-bounds Write CWE-787

Recent mention · Google Chrome Releases

Stable Channel Update for ChromeOS / ChromeOS Flex

The ChromeOS Stable channel is being updated to OS version 16667.47.0 (Browser version 149.0.7827.153) for most ChromeOS devices.If you find new issues, please let us know one of the following ways:File a bugVisit our ChromeOS communitiesGeneral: Chromebook Help CommunityBeta...

Read full advisory

All Mentions

Recent mention · Google Chrome Releases

Stable Channel Update for ChromeOS / ChromeOS Flex

Google Chrome Releases · 17 Jun 2026

The ChromeOS Stable channel is being updated to OS version 16667.47.0 (Browser version 149.0.7827.153) for most ChromeOS devices.If you find new issues, please let us know one of the following ways:File a bugVisit our ChromeOS communitiesGeneral: Chromebook Help CommunityBeta Specific: ChromeOS Beta Help CommunityReport an issue or send feedback on ChromeInterested in switching channels? Find out how.Luis MenezesGoogle ChromeOS  ChromeOS Vulnerability Rewards Program Reported Bug Fixes:N/AOther 3rd Party Security Fixes Included:High Fixes   [LPE] Patchpanel ConnectNamespace PID Gate Bypass...

Recent mention · All CISA Advisories

CISA Adds Three Known Exploited Vulnerabilities to Catalog

All CISA Advisories · 09 Jun 2026

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-7473 Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability CVE-2026-11645 Google Chromium V8 Out-of-Bounds Read and Write Vulnerability CVE-2026-20245 Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD)...

Recent mention · The Hacker News

Chrome V8 Zero-Day CVE-2026-11645 Exploited in the Wild - Patch Now

The Hacker News · 09 Jun 2026

Google has released security updates to address 74 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-11645 (CVSS score: 8.8), has been described as an out-of-bounds memory access in V8, Chrome's JavaScript and WebAssembly engine. "Out-of-bounds read and write in V8 in Google Chrome prior to 149.0.7827.103

Recent mention · Google Chrome Releases

Stable Channel Update for Desktop

Google Chrome Releases · 08 Jun 2026

The Stable channel has been updated to 149.0.7827.102/.103 for Windows and Mac and 149.0.7827.102 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is available in the LogSecurity Fixes and RewardsNote: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven’t yet fixed.This update includes 74 security fixes. Below, we highlight fixes that were contributed by external...

Timeline

From disclosure to observed exploitation

  1. 20:20 UTC

    KEV confirmed by All CISA Advisories

    Exploitation attested by an external source

  2. 18:01 UTC

    KEV confirmed by CVE

    Exploitation attested by an external source

  3. 18:01 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  4. 13:20 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  5. 23:27 UTC

    CVE published

    Vulnerability disclosed publicly

  6. 21:33 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-11645

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2026-11645",
  "confidence": "Confirmed",
  "cvss_score": 8.8,
  "cvss_estimated": false,
  "epss_score": 0.0244,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}