CVE-2021-20454

HIGH
8.2
CVSS Score
Published: April 21, 2021 at 12:05 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
1 product affected across 1 vendorWebSphere Application Server

Using WebSphere Application Server by IBM?

Get instant alerts when new vulnerabilities affect WebSphere Application Server - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.2
Exploit prediction
EPSS 3%

Description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 196649.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.0.0.0 ≤ v ≤ 7.0.0.458.0.0.0 ≤ v ≤ 8.0.0.158.5.0.0 ≤ v ≤ 8.5.5.199.0.0.0 ≤ v ≤ 9.0.5.77.08.08.59.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRMThird Party Advisory
https://www.ibm.com/support/pages/node/6445481

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-611

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card