CVE-2020-4464

highpriority · attend · 50EPSS 0.132 · 96 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

13.2% (96th) EPSS

CVSS 9 · high

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to execute arbitrary code on a system with a specially-crafted sequence of serialized objects over the SOAP connector. IBM X-Force ID: 181489.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AC:L/PR:L/S:U/AV:N/I:H/UI:N/C:H/A:H/RC:C/RL:O/E:Usecondary · ENISA EU

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@us.ibm.com USexploitability 2.8 · impact 5.9

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimary

exploits (2)

Public proof-of-concept and weaponised exploit code.

silentsignal/WebSphere-WSIF-gadgetCVE-2020-4464 / CVE-2020-4450PoC · poc_in_github
yonggui-li/CVE-2020-4464-and-CVE-2020-4450yonggui-li/CVE-2020-4464-and-CVE-2020-4450PoC · poc_in_github

affected products (8)

Products and version ranges known to be affected.

IBM WebSphere Application Server≤ 9.0enisa_euvdEU
IBM WebSphere Application Server≤ 8.5enisa_euvdEU
IBM WebSphere Application Server≤ 8.0enisa_euvdEU
IBM WebSphere Application Server≤ 7.0enisa_euvdEU
ibm websphere application server7.0.0.0 → 7.0.0.45nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server8.0.0.0 → 8.0.0.15nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server8.5.0.0 → 8.5.5.17nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server9.0.0.0 → 9.0.5.4nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-07-17modified 2026-06-17

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+3739 more

references (17)

External citations — patches, advisories, analysis.

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