CVE-2021-20480

Name: CVE-2021-20480
Creator: NVD / NIST
Published: 2021-04-08T13:15:13.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2021-20480 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.30%

66.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Ibm	Websphere Application Server	>= 7.0.0.0, <= 7.0.0.45
Ibm	Websphere Application Server	>= 8.0.0.0, <= 8.0.0.15
Ibm	Websphere Application Server	>= 8.5.0.0, <= 8.5.5.19

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/197502VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6441063Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/197502VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6441063Patch, Vendor Advisory

Timeline

Published: Apr 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20480?

How severe is CVE-2021-20480?

CVE-2021-20480 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20480?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20480?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST