# CVE-2026-85043 — Google Chrome

> As of 2026-09-04, CVE-2026-85043 is a CRITICAL-severity vulnerability in Google Chrome, CVSS v3.1 9.1, EPSS 0.4% (36.3th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-85043, most recently “Google Patches Chrome Zero-Day CVE-2026-85046 (6th of 2026), Actively Exploited V8 Type Confusion”.

**Last updated:** 2026-09-04

## What is CVE-2026-85043?

Incomplete cleanup in Network in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: High)

The record classifies CVE-2026-85043 under weakness class [CWE-459](https://intel.threadlinqs.com/cwe/CWE-459). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 57 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.1 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 36.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-03, last modified 2026-09-04

## Is CVE-2026-85043 being exploited?

Weaponised exploit code for CVE-2026-85043 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 43 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-85043.md) (trickest)

## Affected products and versions

- [Google](https://intel.threadlinqs.com/vendors/google): Chrome

## How to fix CVE-2026-85043

No vendor patch reference has been recorded for CVE-2026-85043 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-85043

1 tracked threat in the Threadlinqs corpus references CVE-2026-85043, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Google Patches Chrome Zero-Day CVE-2026-85046 (6th of 2026), Actively Exploited V8 Type Confusion](https://intel.threadlinqs.com/threat/TL-2026-2326) — HIGH · 2026-09-04

## Sources

Enriched from CVE.org, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [chromereleases.googleblog.com](https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html)
- [issues.chromium.org](https://issues.chromium.org/issues/533502257)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-85043
Full detection coverage and IOCs for threats exploiting CVE-2026-85043 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp