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VulnerabilityCVE-2026-65802Published 2026-08-03

CVE-2026-65802 — Microsoft Edge (Chromium-based)

high

As of 2026-10-08, CVE-2026-65802 is a HIGH-severity vulnerability in Microsoft Edge (Chromium-based), CVSS v3.1 7.4, EPSS 0.9% (59.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-65802, most recently “GovCERT.HK Security Alert A26-08-01: Multiple Vulnerabilities in Microsoft Edge, Office 2019/LTSC 2021/LTSC 2024, Excel 2016, and Microsoft 365 Apps for Enterprise”.

CVSS v3.1
7.4/10High
EPSS
0.9%Higher than 59.1% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
6.1/10Threadlinqs triage score
Published
Updated 2026-10-08
CVSS v3.1 7.4 (HIGH) · EPSS 0.9% (higher than 59.1% of all scored CVEs) · Priority 6.1/10 · Published 2026-08-03

Last updated:

What is CVE-2026-65802?

External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclose information over a network.

The record classifies CVE-2026-65802 under weakness class CWE-73. 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. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 85 days ago.

Severity and exploitation probability

CVSS v3.1 base score
7.4 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C
EPSS (FIRST)
0.9% probability of exploitation in the next 30 days, higher than 59.1% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
6.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-08-03, last modified 2026-10-08

Is CVE-2026-65802 being exploited?

It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-65802

No vendor patch reference has been recorded for CVE-2026-65802 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-2026-65802

1 tracked threat in the Threadlinqs corpus references CVE-2026-65802, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .

Vendor advisory and patch