What is CVE-2021-26582?

CVE-2021-26582 is a medium-severity vulnerability in HP Hp-Ux, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-15.

How severe is CVE-2021-26582?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in HP Hp-Ux

CVE-2021-26582

A security vulnerability in HPE IceWall SSO Domain Gateway Option (Dgfw) module version 10.0 on RHEL 5/6/7, version 10.0 on HP-UX 11i v3, version 10.0 on Windows and 11.0 on Windows could be exploited remotely to allow cross-site scripting (XSS).

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-04-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

HP Hp-Ux — versions 11i
HP Icewall Sso Dgfw — versions 10.0, 11.0
Microsoft Windows
Red Hat Enterprise Linux — versions 5.0, 6.0, 7.0
Icewall Sso Dgfw — versions IceWall SSO Dgfw 10.0 (RHEL, HP-UX, Windows) and IceWall SSO Dgfw 11.0 (Windows)

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support.hpe.com/hpsc/doc/public/display (Vendor Advisory)

Frequently asked questions

What is CVE-2021-26582?: CVE-2021-26582 is a medium-severity vulnerability in HP Hp-Ux, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-15.
How severe is CVE-2021-26582?: Medium severity. CVSS v3 base score is 6.1 out of 10.