CVE-2021-25143

HIGH

7.5

CVSS Score

Published: March 29, 2021 at 07:03 PM UTC

Updated: June 17, 2026 at 03:41 AM UTC

3 products affected across 2 vendorsInstantScalance W1750D FirmwareScalance W1750D

Using Aruba Instant Access Points by N/A?

Get instant alerts when new vulnerabilities affect Aruba Instant Access Points - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.5

Exploit prediction

EPSS 1%

Description

A remote denial of service (dos) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 8.3.x: 8.3.0.12 and below; Aruba Instant 8.5.x: 8.5.0.9 and below; Aruba Instant 8.6.x: 8.6.0.4 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Instant · Aruba Networks

95%

v ≤ 8.3.0.12v ≤ 8.5.0.9v ≤ 8.6.0.48.3.0.0 ≤ v < 8.3.0.138.5.0.0 ≤ v < 8.5.0.108.6.0.0 ≤ v < 8.6.0.5

Affected range stops below 8.3.0.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.0.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.6.0.5, so it looks safe — our inference, not a vendor statement

Scalance W1750D Firmware · Siemens

95%

v < 8.7.0

Affected range stops below 8.7.0, so it looks safe — our inference, not a vendor statement

siemens-scalance-w1750d (same device)

Scalance W1750D · Siemensdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMPatchThird Party Advisory

Source: [email protected]

https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdf

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card