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Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2026-85046

Chrome

Google / Chrome · affected before 152.0.7977.82

Severity
CVSS 8.8 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
0.5%
First observed
Last observed

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-85046 is an unauthenticated vulnerability affecting Google Chrome. Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via 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 152.0.7977.82.

What should we do?

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

Overview

Chrome

Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Vendor Product Affected Status
Google Chrome Before 152.0.7977.82 Affected
Published
03 Sep 2026
Exploitation Reported
04 Sep 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

TheHackerNews

Recorded 04 Sep 2026

Independent exploitation attestation added to the Previdian record.

Proof of concept available

GitHub

Recorded 04 Sep 2026

Public scanner or PoC coverage increases practical exploitability.

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
TheHackerNews First 2026-09-04 07:18 UTC
CyberInsider 2026-09-04 09:33 UTC
CISA 2026-09-04 17:01 UTC
CVE 2026-09-04 17:20 UTC

Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
0
User-Agents
0
Callback hosts
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.5%

Recent mention · CyberInsider

Google fixes actively exploited Chrome V8 zero-day vulnerability

Google has released a Chrome security update addressing 12 vulnerabilities, including a high-severity V8 flaw that is being actively exploited in attacks. The fixes are included in Chrome 152.0.7977.82/.83 for Windows and macOS and version 152.0.7977.82 for Linux, with...

Read full advisory

All Mentions

Recent mention · CyberInsider

Google fixes actively exploited Chrome V8 zero-day vulnerability

CyberInsider · 04 Sep 2026

Google has released a Chrome security update addressing 12 vulnerabilities, including a high-severity V8 flaw that is being actively exploited in attacks. The fixes are included in Chrome 152.0.7977.82/.83 for Windows and macOS and version 152.0.7977.82 for Linux, with deployment taking place gradually. The actively exploited vulnerability is tracked as CVE-2026-85046 and is described as … The post Google fixes actively exploited Chrome V8 zero-day vulnerability appeared first on CyberInsider.

Recent mention · TheHackerNews

Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day

TheHackerNews · 04 Sep 2026

Google on Thursday released security updates to patch 12 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-85046 (CVSS score: 8.8), has been described as a type confusion bug in V8, Chrome's JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote

Recent mention · Google Chrome Releases

Stable Channel Update for Desktop

Google Chrome Releases · 03 Sep 2026

The Stable channel has been updated to 152.0.7977.82/.83 for Windows and Mac and 152.0.7977.82 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log Security 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 12 security fixes. Please see the Chrome Security Page for more...

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

ubitquity/CVE-2026-85046-Patch-confusion-zero-day-vulnerability-in-Google-Chrome-s-V8-engine

github · Created 2026-09-04 11:28:47 UTC · 0 stars · AI assessment 85%

Conceptual C++ patch and structural analysis for CVE-2026-85046, a critical type confusion zero-day vulnerability in Google Chrome's V8 engine

HORKimhab/CVE-2026-85046

github · Created 2026-09-04 08:11:34 UTC · 0 stars · AI assessment 90%

CVE-2026-85046

Timeline

From disclosure to observed exploitation

  1. KEV confirmed by CVE

    Exploitation attested by an external source

  2. Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  3. KEV confirmed by CyberInsider

    Exploitation attested by an external source

  4. Public PoC available

    Public proof-of-concept code published

  5. Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  6. CVE published

    Vulnerability disclosed publicly

  7. 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.

  • 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-2026-85046

Free JSON includes basic KEV fields
{
  "cve_id": "CVE-2026-85046",
  "confidence": "Confirmed",
  "cvss_score": 8.8,
  "cvss_estimated": false,
  "epss_score": 0.00462,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}