# CVE-2026-45495 — Microsoft Edge (Chromium-based)

> As of 2026-08-10, CVE-2026-45495 is a HIGH-severity vulnerability in Microsoft Edge (Chromium-based), CVSS v3.1 8.8, EPSS 1.0% (62.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-45495, most recently “Microsoft Edge CVE-2026-45495 — Feedback-Log Path-Validation Remote Code Execution”.

**Last updated:** 2026-08-10

## What is CVE-2026-45495?

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

The record classifies CVE-2026-45495 under weakness classes [CWE-35](https://intel.threadlinqs.com/cwe/CWE-35), [CWE-94](https://intel.threadlinqs.com/cwe/CWE-94), [CWE-119](https://intel.threadlinqs.com/cwe/CWE-119), [CWE-20](https://intel.threadlinqs.com/cwe/CWE-20). 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 146 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/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 1.0% probability of exploitation in the next 30 days, higher than 62.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-05-18, last modified 2026-08-10

## Is CVE-2026-45495 being exploited?

It currently carries a trending score of 21 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Microsoft](https://intel.threadlinqs.com/vendors/microsoft): Edge (Chromium-based)

## How to fix CVE-2026-45495

No vendor patch reference has been recorded for CVE-2026-45495 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-2026-45495

1 tracked threat in the Threadlinqs corpus references CVE-2026-45495, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Microsoft Edge CVE-2026-45495 — Feedback-Log Path-Validation Remote Code Execution](https://intel.threadlinqs.com/threat/TL-2026-0703) — HIGH · 2026-06-07

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45495)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-45495
Full detection coverage and IOCs for threats exploiting CVE-2026-45495 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp