CVE-2021-22526Network attack vector

Browser redirection to untrusted sites

Published Sep 13, 2021 · Updated Sep 16, 2024

Open redirect in OpenText NetIQ Access Manager 4.5 before 4.5.4 and 5.0 before 5.0.1 allows attackers to send browsers to untrusted sites. The vendor states only that specific resources trigger the redirect and has not published the affected endpoint, parameter, or validation error. Public scoring disagrees on whether authentication or victim interaction is required; the documented behavior is limited to redirected navigation.

CVSS severity6.1
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in OpenText NetIQ Access Manager 4.5 before 4.5.4 and 5.0 before 5.0.1 allows attackers to send browsers to untrusted sites. The vendor states only that specific resources trigger the redirect and has not published the affected endpoint, parameter, or validation error. Public scoring disagrees on whether authentication or victim interaction is required; the documented behavior is limited to redirected navigation.

The record

CVE
CVE-2021-22526
Published
Sep 13, 2021
Updated
Sep 16, 2024
Vendor
OpenText
Product
NetIQ Access Manager
Classifications
CWE-601, CAPEC-178
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=NetIQ Access Manager <5.0.1 changes=[{"at":"4.5.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

OpenText · NetIQ Access Managerversion=NetIQ Access Manager <5.0.1 changes=[{"at":"4.5.4","status":"unaffected"}]

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.9OpenTextCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
CAPEC-178Cross-Site Flashing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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