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Fencer Vulns
medium 5.3

CVE-2021-37735 json

A remote denial of service vulnerability was discovered in Aruba Instant version(s): Aruba Instant 6.5.x.x: 6.5.4.18 and below; Aruba Insta…

published 2021-10-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24216

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

A remote denial of service vulnerability was discovered in Aruba Instant version(s): Aruba Instant 6.5.x.x: 6.5.4.18 and below; Aruba Instant 8.5.x.x: 8.5.0.10 and below; Aruba Instant 8.6.x.x: 8.6.0.4 and below. Aruba has released patches for Aruba Instant (IAP) that address this security vulnerability.

Patch / fix

  • arubanetworks aruba_instant 6.5.4.18, 8.5.0.11, 8.6.0.5
  • siemens scalance_w1750d_firmware 8.7.1.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-315-06 updated cvss 4.9

Siemens SCALANCE W1750D

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a HPE Aruba Instant (IAP)

Classification

Weakness
  • CWE-134 Use of Externally-Controlled Format String

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.