CVE-2020-4305

highpriority · track · 37EPSS 0.045 · 92 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.54% (92nd) EPSS

CVSS 9.3 · high

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

IBM InfoSphere Information Server 11.3, 11.5, and 11.7 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 176677.

cvss

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

9.3

010

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

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

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

v3.08.1highCVSS:3.0/AC:H/AV:N/I:H/S:U/PR:N/UI:N/A:H/C:H/E:U/RC:C/RL:Osecondary · ENISA EU

v3.08.1highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@us.ibm.com USexploitability 2.2 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimary

affected products (8)

Products and version ranges known to be affected.

IBM InfoSphere Information Server≤ 11.5enisa_euvdEU
IBM InfoSphere Information Server≤ 11.3enisa_euvdEU
IBM InfoSphere Information Server≤ 11.7enisa_euvdEU
ibm infosphere information server= 11.3.0nvdUScpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:*
ibm infosphere information server= 11.5.0nvdUScpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:*
ibm infosphere information server11.7.0.0 → 11.7.1.1nvdUScpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:*
ibm infosphere information server on cloud= 11.5.0.0nvdUScpe:2.3:a:ibm:infosphere_information_server_on_cloud:*:*:*:*:*:*:*:*
ibm infosphere information server on cloud11.7.0.0 → 11.7.1.1nvdUScpe:2.3:a:ibm:infosphere_information_server_on_cloud:*:*:*:*:*:*:*:*

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 2020-07-09modified 2026-06-17

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+3740 more

references (9)

External citations — patches, advisories, analysis.

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