vciy

CVE-2021-37733

INDEX BUILT · 2026-09-20

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A remote path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to…

CVE-2021-377334 of 4 sources documented this
18

rank 18 = 0 + 12 + 0 + 6 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.01153  ·  without this subject the record ranks 18

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 4.9, from NVD  ·  without this subject the record ranks 6

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 18

How much of the world it touches

NVD CPE configurations

6 products in the CPE ranges  ·  without this subject the record ranks 12

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 18

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$35,200over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$35,200 = $4.99M incident cost x 0.6121449559255632 exposure x 0.01153 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.01153EPSSNOT IN KEVas of 2026-09-20
Severity4.9 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2021-09-08, 1757 days at 0.01, as of 2026-07-01. arc-rules@v1

Foresight · where to check next

SonicWall EmailCVE-2024-57727CVE-2024-55550ConfiguratorZyxel ATP seriesCVE-2024-5772837733

This record is one instance of CWE-22, improper limitation of a pathname to a restricted directory ('path traversal'). The index holds 10301 prior instances of this class, 94 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running Aruba SD-WAN Software and Gateways? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · high privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')receipt
Published consequencesCWE-22: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands; Integrity: Modify Files or Directories; Confidentiality: Read Files or Directories…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by brancharubaos 8.3.0.16; arubaos 8.5.0.11; arubaos 8.6.0.7; arubaos 8.7.1.1; sd-wan 2.2.0.4; scalance w1750d firmware 8.7.1.3receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD4.9 MEDIUMreceipt
Exploit probability0.01153 · top 34% of all CVEsreceipt
Blast breadth3 products across 2 vendorsderived
Assigned byhpereceipt
Recorded changes19 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productAruba SD-WAN Software and Gateways; Aruba Operating System Softwarereceipt
Published rangesarubanetworks sd-wan >= 2.2.0.0 < 2.2.0.4; arubanetworks arubaos >= 8.3.0.0 < 8.3.0.16; arubanetworks arubaos >= 8.5.0.0 < 8.5.0.11; arubanetworks arubaos >= 8.6.0.0 < 8.6.0.7receipt
Show all 6 published ranges
arubanetworks sd-wan >= 2.2.0.0 < 2.2.0.4
arubanetworks arubaos >= 8.3.0.0 < 8.3.0.16
arubanetworks arubaos >= 8.5.0.0 < 8.5.0.11
arubanetworks arubaos >= 8.6.0.0 < 8.6.0.7
arubanetworks arubaos >= 8.7.0.0 < 8.7.1.1
siemens scalance w1750d firmware < 8.7.1.3

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

A remote path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to 8.6.0.4-2.2.0.4; Prior to 8.7.1.1, 8.6.0.7, 8.5.0.11, 8.3.0.16. Aruba has released patches for Aruba SD-WAN Software and Gateways and ArubaOS that address this security vulnerability. receipt

NVD's analysis a second authority

severity
4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-22
affected versions
arubanetworks sd-wan >= 2.2.0.0 < 2.2.0.4; arubanetworks arubaos >= 8.3.0.0 < 8.3.0.16; arubanetworks arubaos >= 8.5.0.0 < 8.5.0.11; and 3 more, listed in full below

check it yourself arubanetworks.com cert-portal.siemens.com receipt

Dated events

2022-02-04EPSS moved 0.03 to 0.092022-04-01EPSS moved 0.09 to 0.01

Movement the material steps

8 Sep 20210.00416
7 Mar 20236.2e-4 · scoring model v2023.03.01
17 Mar 20250.00448 · scoring model v2025.03.14
15 Jun 20260.01116 · scoring model v2026.06.15
1 Jul 20260.01153
Show all 19 observations
8 Sep 20210.00416
13 Oct 20210.00624
6 Jan 20220.02742
4 Feb 20220.09029
1 Apr 20220.00885
7 Mar 20236.2e-4
8 Mar 20230.00062
31 Mar 20230.00087
5 Mar 20240.00124
30 Jul 20240.00121
17 Dec 20240.00075
17 Mar 20250.00448
29 Mar 20250.00935
30 Mar 20250.00448
18 Nov 20250.00445
21 Nov 20250.00448
12 Apr 20260.00401
15 Jun 20260.01116
1 Jul 20260.01153

19 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.01153Published2021-09-07Index as of2026-07-01

The record had been public for 4 years, 9 months when this index was last written.

Published 2021-09-07 receipt · Index as of 2026-07-01 derived

The pattern, elsewhere

This record is one instance of CWE-22, improper limitation of a pathname to a restricted directory ('path traversal'). The index holds 10301 prior instances of this class, 94 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2021-20023 · SonicWall Email Securitymatches 8 of 9KEV listed · 2021receipt
CVE-2024-57727matches 7 of 8KEV listed · 2025receipt
CVE-2024-55550matches 7 of 8KEV listed · 2024receipt
CVE-2025-61884 · Oracle Configuratormatches 7 of 9KEV listed · 2025receipt
CVE-2024-11667 · Zyxel ATP series firmwarematches 7 of 9KEV listed · 2024receipt
CVE-2024-57728matches 6 of 8KEV listed · 2025receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

10301 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

aruba sd-wan software and gateways

Of the 3 records in this family that state one, this holds the lowest NVD CVSS score: 4.9.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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What usually comes next

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