PT-2026-4309 · Microsoft · Azure Data Explorer

Moshe Bernstein · Published 2026-01-22 · Updated 2026-02-03 · CVE-2026-21524

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Azure Data Explorer (affected versions not specified)

Description An issue exists in Azure Data Explorer that allows an unauthorized attacker to disclose sensitive information over a network. The issue involves the exposure of sensitive information to an unauthorized actor.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-21524

Affected Products

Azure Data Explorer

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-21524 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21524 · Vendor Advisory
• https://t.me/msrcreports/3006 · Telegram Post
• https://t.me/cveNotify/150719 · Telegram Post
• https://twitter.com/CVEnew/status/2014576997851398453 · Twitter Post
• https://t.me/cveNotify/149627 · Telegram Post