CVE-2021-26582Network attack vector

Remote script execution via undisclosed XSS flaw

Published Apr 15, 2021 · Updated Aug 3, 2024

Cross-site scripting in HPE IceWall SSO Dgfw 10.0, and 11.0 on Windows, allows remote attackers to execute browser script. HPE identifies the Domain Gateway Option module but does not disclose the affected request, input field, or missing output-neutralization operation. Reachability is remote without authentication; HPE and NVD disagree on whether victim interaction is required, and no public source further bounds the browser-side consequence.

CVSS severity5.8
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in HPE IceWall SSO Dgfw 10.0, and 11.0 on Windows, allows remote attackers to execute browser script. HPE identifies the Domain Gateway Option module but does not disclose the affected request, input field, or missing output-neutralization operation. Reachability is remote without authentication; HPE and NVD disagree on whether victim interaction is required, and no public source further bounds the browser-side consequence.

The record

CVE
CVE-2021-26582
Published
Apr 15, 2021
Updated
Aug 3, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
HPE IceWall SSO Domain Gateway Option (Dgfw)
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=IceWall SSO Dgfw 10.0 (RHEL, HP-UX, Windows) and IceWall SSO Dgfw 11.0 (Windows)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · HPE IceWall SSO Domain Gateway Option (Dgfw)version=IceWall SSO Dgfw 10.0 (RHEL, HP-UX, Windows) and IceWall SSO Dgfw 11.0 (Windows)

Published CVSS scores

5.0Hewlett Packard EnterpriseAV:N/AC:L/Au:N/C:N/I:N/A:P
5.8Hewlett Packard EnterpriseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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