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CVE-2021-34618

21
FAUCET Score

CVE-2021-34618 is a remote Denial of Service (DoS) vulnerability affecting several versions of Aruba Instant Access Point (IAP) products, including Aruba Instant 6.4.x, 6.5.x, 8.3.x, 8.4.x, 8.5.x, 8.6.x, and 8.7.x. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited by an unauthenticated attacker on the adjacent network with low complexity, leading to a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE. Aruba has released patches to address this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4.0, <= 6.4.4.8-4.2.4.18CPE matchmatch criteria
cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*
>= 6.5.0, <= 6.5.4.18CPE matchmatch criteria
cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*
>= 8.3.0, <= 8.3.0.14CPE matchmatch criteria
cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*
>= 8.4.0, <= 8.5.0.11CPE matchmatch criteria
cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*
>= 8.6.0, <= 8.6.0.7CPE matchmatch criteria
cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 59th percentile among its peer group of 1,802 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

arubanetworks.com / assets/alert/ARUBA-PSA-2021-007.txt
Vendor Advisory