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CVE-2016-2031

33
FAUCET Score

CVE-2016-2031 describes multiple critical vulnerabilities in Aruba Instant before versions 4.1.3.0 and 4.2.3.1, as well as various Aruba and Siemens networking products. These flaws stem from insufficient input validation and parameter checking, allowing attackers to bypass security, access sensitive data, perform unauthorized actions, and execute arbitrary code. With a CVSS score of 9.8 (Critical), the vulnerability is network-exploitable with low attack complexity, requiring no user interaction, and can lead to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation in the KEV catalog or public exploit frameworks like Metasploit or Nuclei, the vulnerability has garnered significant community discussion and media coverage, indicating a high level of awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.2.0.0CPE matchmatch criteria
cpe:2.3:a:arubanetworks:airwave:*:*:*:*:*:*:*:*
< 4.1.3.0CPE matchmatch criteria
cpe:2.3:a:arubanetworks:aruba_instant:*:*:*:*:*:*:*:*
4.2.3.1CPE matchmatch criteria
cpe:2.3:a:arubanetworks:aruba_instant:4.2.3.1:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.12%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0512 is in the 86th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 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/136997/Aruba-Authentication-Bypass-Insecure-Transport-Tons-Of-Issues.html
ExploitThird Party AdvisoryVDB Entry
cert-portal.siemens.com / productcert/pdf/ssa-431802.pdf
Third Party Advisory
seclists.org / fulldisclosure/2016/May/19
ExploitMailing ListThird Party Advisory
securityfocus.com / bid/90207
Broken Link
arubanetworks.com / assets/alert/ARUBA-PSA-2016-004.txt
Vendor Advisory