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VulnerabilityCVE-2026-83941Published 2026-09-08

CVE-2026-83941 — Microsoft Entra

critical

As of 2026-10-08, CVE-2026-83941 is a CRITICAL-severity vulnerability in Microsoft Entra, CVSS v3.1 9.9, EPSS 0.7% (54.5th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-83941, most recently “September 2026 Microsoft Patch Tuesday — Record 966+ Vulnerabilities with Two Actively Exploited Zero-Days (CVE-2026-81963, CVE-2026-85880) and Multiple Critical Wormable RCEs”.

CVSS v3.1
9.9/10Critical
EPSS
0.7%Higher than 54.5% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
2Campaigns referencing it
Priority
7.1/10Threadlinqs triage score
Published
Updated 2026-10-08
CVSS v3.1 9.9 (CRITICAL) · EPSS 0.7% (higher than 54.5% of all scored CVEs) · Priority 7.1/10 · Published 2026-09-08

Last updated:

What is CVE-2026-83941?

Missing authorization in Entra ID allows an authorized attacker to elevate privileges over a network.

The record classifies CVE-2026-83941 under weakness class CWE-862. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 44 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.9 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C
EPSS (FIRST)
0.7% probability of exploitation in the next 30 days, higher than 54.5% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
7.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-09-08, last modified 2026-10-08

Is CVE-2026-83941 being exploited?

It currently carries a trending score of 46 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-83941

No vendor patch reference has been recorded for CVE-2026-83941 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-2026-83941

2 tracked threats in the Threadlinqs corpus reference CVE-2026-83941, 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