CVE-2021-25155

Name: CVE-2021-25155
Creator: NVD / NIST
Published: 2021-03-30T01:15:12.863+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 13.31%

Last modified Jun 17, 2026

CVE-2021-25155 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A remote arbitrary file modification vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; 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: 8.6.0.6 and below; Aruba Instant 8.7.x: 8.7.1.0 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.. EPSS estimates a 13.31% chance of exploitation in the next 30 days.

Description

A remote arbitrary file modification vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; 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: 8.6.0.6 and below; Aruba Instant 8.7.x: 8.7.1.0 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

13.31%

95.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Arubanetworks	Instant	>= 6.4.0.0, <= 6.4.4.8-4.2.4.18
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, < 8.6.0.7
Arubanetworks	Instant	>= 8.7.0.0, < 8.7.1.1
Siemens	Scalance W1750d Firmware	>= 8.7.0, < 8.7.1.3

References

http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163524/Aruba-Instant-8.7.1.0-Arbitrary-File-Modification.htmlThird Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdfPatch, Third Party Advisory
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txtVendor Advisory
http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163524/Aruba-Instant-8.7.1.0-Arbitrary-File-Modification.htmlThird Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdfPatch, Third Party 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-2021-25155?

How severe is CVE-2021-25155?

CVE-2021-25155 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 13.31% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25155?

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-2021-25155?

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

Scan your code now

Source: NVD / NIST