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CVE-2021-25156

48
FAUCET Score

CVE-2021-25156 is a remote arbitrary directory creation vulnerability affecting multiple versions of Aruba Instant Access Point (IAP) products. This medium-severity vulnerability (CVSS 4.9) allows an authenticated attacker to create directories remotely, potentially leading to high integrity impact, though confidentiality and availability are not affected. While there is no evidence of active exploitation, public exploit code exists, and the vulnerability has received minimal community discussion or media coverage. Organizations utilizing affected Aruba IAP versions should apply the vendor-provided patches promptly.

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

4.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
40.52%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50136 · Jul 15, 2021
This CVE's current EPSS score of 0.4052 is in the 100th percentile among its peer group of 3,565 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
ExploitThird 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