CVE-2021-37727

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-12 · updated 2026-06-17
Weakness: CWE-78

Description

A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): 6.4.x.x: 6.4.4.8-4.2.4.18 and below; Aruba Instant 6.5.x.x: 6.5.4.20 and below; Aruba Instant 8.5.x.x: 8.5.0.12 and below; Aruba Instant 8.6.x.x: 8.6.0.11 and below; Aruba Instant 8.7.x.x: 8.7.1.3 and below. Aruba has released patches for Aruba Instant (IAP) that address this security vulnerability.

Affected products

Arubanetworks Aruba Instant: from 6.4.0.2-4.1.0.0 before 6.4.4.8-4.2.4.19; from 6.5.4.0 before 6.5.4.20; from 8.5.0.0 before 8.5.0.12; from 8.6.0.0 before 8.6.0.11; from 8.7.0.0 before 8.7.1.3 — fixed in 6.4.4.8-4.2.4.19, 6.5.4.20, 8.5.0.12, 8.6.0.11, 8.7.1.3
Siemens Scalance W1750D Firmware: from 8.7.1.3

How to fix

Upgrade to a fixed version: Arubanetworks Aruba Instant 6.4.4.8-4.2.4.19, 6.5.4.20, 8.5.0.12, 8.6.0.11. Check the vendor advisory for mitigations.

References

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