A vulnerability classified as problematic has been found in Microsoft Azure Functions. Affected by this issue is some unknown functionality. The manipulation leads to information disclosure.
This vulnerability is traded as CVE-2026-21532. It is possible to initiate the attack remotely. There is no exploit available.
This product operates as a managed service, which prevents users from maintaining vulnerability countermeasures themselves.
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CVE-2026-21532 | Microsoft Azure Functions information disclosure (EUVD-2026-5521)
A vulnerability classified as problematic has been found in Microsoft Azure Functions. Affected by this issue is some unknown functionality. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2026-21532.…
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IoC Intelligence (1 Indikatoren)
CVE-2026-21532
CTI Threat Relationship Graph2 Knoten / 1 Relationen
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title: Detect Exploitation - CVE-2026-21532 | Microsoft Azure Functions information disclosure (EUVD-2026-5521)
id: 3c7e3859-56df-481e-9c18-d85ee1f5cfbe
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessrule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "CVE-2026-21532 | Microsoft Azu" ascii wide
condition:
any of them
}INFRASTRUCTURE BLAST RADIUS & EXPOSURE
Live-Vektor: LOCAL
LOCALIZED
Perimeter & Ingress
Geringes Risiko
Lateral Pivot & AD
GEFÄHRDET (80%)
Crown Jewels & DB
Geringes Risiko
Supply Chain Reach
Geringes Risiko
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich CVE-2026-21532 | Microsoft Azure Functio.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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