# CVE-2026-85046 — Google Chrome **CISA KEV** > As of 2026-09-06, CVE-2026-85046 is a HIGH-severity vulnerability in Google Chrome, CVSS v3.1 8.8, EPSS 1.1% (65.1th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-09-04), with a US federal remediation deadline of 2026-09-18. Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-85046, most recently “Microsoft September 2026 Patch Tuesday — 999 CVEs, 3 actively exploited zero-days (CVE-2026-85880, CVE-2026-81963, CVE-2026-85046)”. **Last updated:** 2026-09-06 ## What is CVE-2026-85046? 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) The record classifies CVE-2026-85046 under weakness class [CWE-843](https://cwe.mitre.org/data/definitions/843.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 10 days ago. ## Severity and exploitation probability - **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`) - **EPSS (FIRST):** 1.1% probability of exploitation in the next 30 days, higher than 65.1% of all scored CVEs - **CISA KEV:** Listed since 2026-09-04, federal remediation deadline 2026-09-18 - **Threadlinqs priority:** 9/10 — CISA KEV-listed, which Threadlinqs floors at 9 - **Published:** 2026-09-03, last modified 2026-09-06 ## Is CVE-2026-85046 being exploited? CISA added CVE-2026-85046 to the Known Exploited Vulnerabilities catalog on 2026-09-04, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-09-18 under BOD 22-01. Weaponised exploit code for CVE-2026-85046 is publicly available. 3 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 63 in the Threadlinqs vulnerability feed. - [HORKimhab/CVE-2026-85046](https://github.com/HORKimhab/CVE-2026-85046) (github) - [adriyansyah-mf/cve-2026-85046-poc](https://github.com/adriyansyah-mf/cve-2026-85046-poc) (github) - [ubitquity/CVE-2026-85046-Patch-confusion-zero-day-vulnerability-in-Google-Chrome-s-V8-engine](https://github.com/ubitquity/CVE-2026-85046-Patch-confusion-zero-day-vulnerability-in-Google-Chrome-s-V8-engine) (github) ## Affected products and versions - **Google**: Chrome ## How to fix CVE-2026-85046 Vendor advisory: [https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html](https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html). Because CVE-2026-85046 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-09-18. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory. ## Threat activity tracking CVE-2026-85046 2 tracked threats in the Threadlinqs corpus reference CVE-2026-85046, either in the campaign’s CVE list or as an indicator on the campaign record. - [Microsoft September 2026 Patch Tuesday — 999 CVEs, 3 actively exploited zero-days (CVE-2026-85880, CVE-2026-81963, CVE-2026-85046)](https://intel.threadlinqs.com/threat/TL-2026-2407) — CRITICAL · 2026-09-08 - [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, NVD, FIRST EPSS, CISA KEV, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-09-07. This product uses the NVD API but is not endorsed or certified by the NVD. **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/542403045) Canonical: https://intel.threadlinqs.com/cve/CVE-2026-85046 Full detection coverage and IOCs for threats exploiting CVE-2026-85046 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp