CVE-2026-21529

mediumpriority · track · 22EPSS 0.007 · 52 %ileDEEUNLRUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.66% (52nd) EPSS
CVSS 5.4 · medium
Is it mine?
23 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper neutralization of input during web page generation ('cross-site scripting') in Azure HDInsights allows an authorized attacker to perform spoofing over a network.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

5.7
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7
v3.15.7mediumAV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · ENISA EU
v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Hsecondary · secure@microsoft.com USexploitability 2.1 · impact 3.6
v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL
v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79USCWE-79USCWE-79US
05

affected products (23)

Products and version ranges known to be affected.

showing 20 of 23
06

advisories (3)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0057Kwetsbaarheden verholpen in Microsoft AzureNL2026-02-10csaf · ncsc_nlNL

    Microsoft heeft kwetsbaarheden verholpen in diverse Azure componenten.

  • WID-SEC-W-2026-0370Microsoft Azure-Produkte: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure und Microsoft Azure DevOps Server ausnutzen, um sich erweiterte Berechtigungen zu verschaffen, beliebigen Code auszuführen – sogar mit Administratorrechten –, Spoofing-Angriffe durchzuführen und vertrauliche Informationen offenzulegen.

  • msrc_CVE-2026-21529Azure HDInsight Spoofing Vulnerability2026-02-10csaf · msrc_csafUS

    To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundmsrc_csafncsc_nlNVDCVE.orgMITRE
published 2026-02-10modified 2026-10-06
09

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan