CVE-2026-65673

Privilege escalation via SQL injection

Published Aug 11, 2026 · Updated Aug 25, 2026

SQL injection in Microsoft Entra Connect Sync before 2.6.84.0 allows local users to elevate privileges via crafted SQL input. Microsoft has not published the affected function, query, or code path, so the vulnerable SQL operation inside the Sync component remains undisclosed. Exploitation requires local access and low existing privileges on the Entra Connect host, and the published scoring indicates compromise of that installation rather than a cross-boundary service takeover.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Microsoft Entra Connect Sync before 2.6.84.0 allows local users to elevate privileges via crafted SQL input. Microsoft has not published the affected function, query, or code path, so the vulnerable SQL operation inside the Sync component remains undisclosed. Exploitation requires local access and low existing privileges on the Entra Connect host, and the published scoring indicates compromise of that installation rather than a cross-boundary service takeover.

The record

CVE
CVE-2026-65673
Published
Aug 11, 2026
Updated
Aug 25, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8GitHub Advisory DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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