CVE-2021-25158

Name: CVE-2021-25158
Creator: NVD / NIST
Published: 2021-03-30T02:15:16.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 30.58%

Last modified Jun 17, 2026

CVE-2021-25158 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. A remote arbitrary file read vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.. EPSS estimates a 30.58% chance of exploitation in the next 30 days.

Description

A remote arbitrary file read vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

30.58%

98.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Arubanetworks	Instant	>= 6.5.0.0, < 6.5.4.19
Arubanetworks	Instant	>= 8.3.0.0, < 8.3.0.15
Arubanetworks	Instant	>= 8.5.0.0, < 8.5.0.12
Arubanetworks	Instant	>= 8.6.0.0, < 8.6.0.8
Arubanetworks	Instant	>= 8.7.0.0, < 8.7.1.2
Siemens	Scalance W1750d Firmware	>= 8.7.0, < 8.7.1.3

References

http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdfPatch, Vendor Advisory
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txtVendor Advisory
http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdfPatch, Vendor Advisory
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txtVendor Advisory

Timeline

Published: Mar 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25158?

How severe is CVE-2021-25158?

CVE-2021-25158 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 30.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25158?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25158?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST