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CVE-2021-25155

37
FAUCET Score

CVE-2021-25155 describes a remote arbitrary file modification vulnerability impacting several versions of Aruba Instant Access Point (IAP) products, including specific releases of Aruba Instant 6.4.x, 6.5.x, 8.3.x, 8.5.x, 8.6.x, and 8.7.x. This vulnerability carries a CVSSv3.1 score of 6.5 (MEDIUM), indicating it can be exploited remotely with low attack complexity by a highly privileged attacker, potentially leading to high integrity and availability impacts. While not listed on the KEV catalog, exploit code for arbitrary file modification and even remote code execution (RCE) has been published on ExploitDB, suggesting a higher risk than its medium CVSS score might imply. Despite available exploits, there is no evidence of active exploitation, and community discussion or media coverage remains minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4.0.0, <= 6.4.4.8-4.2.4.18CPE matchmatch criteria
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
>= 6.5.0.0, < 6.5.4.19CPE matchmatch criteria
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
>= 8.3.0.0, < 8.3.0.15CPE matchmatch criteria
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
>= 8.5.0.0, < 8.5.0.12CPE matchmatch criteria
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
>= 8.6.0.0, < 8.6.0.7CPE matchmatch criteria
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
12.42%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50133 · Jul 16, 2021
This CVE's current EPSS score of 0.1242 is in the 99th percentile among its peer group of 3,563 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/163522/Aruba-Instant-IAP-Remote-Code-Execution.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/163524/Aruba-Instant-8.7.1.0-Arbitrary-File-Modification.html
Third Party AdvisoryVDB Entry
cert-portal.siemens.com / productcert/pdf/ssa-723417.pdf
PatchThird Party Advisory
arubanetworks.com / assets/alert/ARUBA-PSA-2021-007.txt
Vendor Advisory