What is CVE-2021-20480?

CVE-2021-20480 is a medium-severity vulnerability in HP Hp-Ux, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2021-04-08.

How severe is CVE-2021-20480?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in HP Hp-Ux

CVE-2021-20480

IBM WebSphere Application Server 7.0, 8.0, and 8.5 is vulnerable to server-side request forgery (SSRF). By sending a specially crafted request, a remote authenticated attacker could exploit this vulnerability to obtain sensitive data. IBM X-Force ID: 197502.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2021-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.012 (65.8th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.012 · change: -0.001

Affected products

HP Hp-Ux
IBM Aix
IBM I
IBM Websphere Application Server — versions 7.0, 8.0, 8.5
IBM Websphere Application Server
IBM Z\/os
Linux Kernel
Microsoft Windows
Oracle Solaris

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.ibm.com/support/pages/node/6441063 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/197502 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20480?: CVE-2021-20480 is a medium-severity vulnerability in HP Hp-Ux, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2021-04-08.
How severe is CVE-2021-20480?: Medium severity. CVSS v3 base score is 6.5 out of 10.