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9.8

IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized obje...

CVE-2020-4448 · published 6 years ago
Summary

IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 181228.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm websphere_application_server >= 8.5.0.0, < 8.5.5.18
>= 9.0.0.0, < 9.0.5.4
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere_virtual_enterprise 7.0
8.0
cpe:2.3:a:ibm:websphere_virtual_enterprise:7.0:*:*:*:*:*:*:*
Original advisory text
IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized obje...
IBM WebSphere Application Server Network Deployment 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources. IBM X-Force ID: 181228.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Exploitation
13% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published5 Jun 2020
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2020-4448 · NVD
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