CVE-2021-32076Network attack vector

Unauthenticated setup wizard access via spoofed Referer

Published Aug 26, 2021 · Updated Sep 17, 2024

Access restriction bypass in SolarWinds Web Help Desk 12.7.2 and earlier allows remote attackers to access its setup wizard. The wizard trusts an attacker-controlled HTTP Referer value of http://127.0.0.1:8081 as proof that a request originates from an allowed local address. No authentication is required, and the exposed wizard includes the administrator account creation page.

CVSS severity5.3
Medium
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access restriction bypass in SolarWinds Web Help Desk 12.7.2 and earlier allows remote attackers to access its setup wizard. The wizard trusts an attacker-controlled HTTP Referer value of http://127.0.0.1:8081 as proof that a request originates from an allowed local address. No authentication is required, and the exposed wizard includes the administrator account creation page.

The record

CVE
CVE-2021-32076
Published
Aug 26, 2021
Updated
Sep 17, 2024
Vendor
SolarWinds
Product
Web Help Desk
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=12.7.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SolarWinds · Web Help Deskversion=unspecified <=12.7.5

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.8SolarWindsCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
5.3SolarWindsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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