# CVE-2026-11645 — Google Chrome **CISA KEV** > As of 2026-06-10, CVE-2026-11645 is a HIGH-severity vulnerability in Google Chrome, CVSS v3.1 8.8, EPSS 2.4% (83.8th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-09), with a US federal remediation deadline of 2026-06-23. Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-11645, most recently “Google Chrome V8 Out-of-Bounds Read/Write Zero-Day CVE-2026-11645 Exploited in the Wild”. **Last updated:** 2026-06-10 ## What is CVE-2026-11645? 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) The record classifies CVE-2026-11645 under weakness classes [CWE-125](https://intel.threadlinqs.com/cwe/CWE-125), [CWE-787](https://intel.threadlinqs.com/cwe/CWE-787). 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 142 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):** 2.4% probability of exploitation in the next 30 days, higher than 83.8% of all scored CVEs - **CISA KEV:** Listed since 2026-06-09, federal remediation deadline 2026-06-23 - **Threadlinqs priority:** 9/10 — CISA KEV-listed, which Threadlinqs floors at 9 - **Published:** 2026-06-08, last modified 2026-06-10 ## Is CVE-2026-11645 being exploited? CISA added CVE-2026-11645 to the Known Exploited Vulnerabilities catalog on 2026-06-09, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-06-23 under BOD 22-01. Weaponised exploit code for CVE-2026-11645 is publicly available. 4 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 54 in the Threadlinqs vulnerability feed. - [fevar54/CVE-2026-11645-Out-of-bounds-Read-Write](https://github.com/fevar54/CVE-2026-11645-Out-of-bounds-Read-Write) (github) - [0xBlackash/CVE-2026-11645](https://github.com/0xBlackash/CVE-2026-11645) (github) - [adamshaikhma/CVE-2026-11645](https://github.com/adamshaikhma/CVE-2026-11645) (github) - [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-11645.md) (trickest) ## Affected products and versions - [Google](https://intel.threadlinqs.com/vendors/google): Chrome ## How to fix CVE-2026-11645 Because CVE-2026-11645 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-06-23. No vendor patch reference has been recorded for CVE-2026-11645 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-2026-11645 3 tracked threats in the Threadlinqs corpus reference CVE-2026-11645, either in the campaign’s CVE list or as an indicator on the campaign record. - [Google Chrome V8 Out-of-Bounds Read/Write Zero-Day CVE-2026-11645 Exploited in the Wild](https://intel.threadlinqs.com/threat/TL-2026-0725) — HIGH · 2026-06-09 - [Google Chrome V8 Zero-Day CVE-2026-11645 Out-of-Bounds Read/Write Exploited in the Wild](https://intel.threadlinqs.com/threat/TL-2026-0735) — CRITICAL · 2026-06-09 - [CVE-2026-11645: Actively Exploited V8 Out-of-Bounds Memory Access Zero-Day in Google Chrome](https://intel.threadlinqs.com/threat/TL-2026-0740) — HIGH · 2026-06-09 ## Sources Enriched from CVE.org, FIRST EPSS, CISA KEV, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10. **Other references** - [chromereleases.googleblog.com](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html) - [issues.chromium.org](https://issues.chromium.org/issues/506689381) Canonical: https://intel.threadlinqs.com/cve/CVE-2026-11645 Full detection coverage and IOCs for threats exploiting CVE-2026-11645 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp