CVE-2020-4465

mediumpriority · track · 27EPSS 0.019 · 80 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.91% (80th) EPSS

CVSS 4 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS is vulnerable to a buffer overflow vulnerability due to an error within the channel processing code. A remote attacker could overflow the buffer using an older client and cause a denial of service. IBM X-Force ID: 181562.

cvss

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

6.5

010

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

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.05.3mediumCVSS:3.0/S:U/PR:L/AC:H/C:N/A:H/AV:N/UI:N/I:N/RL:O/RC:C/E:Usecondary · ENISA EU

v3.05.3mediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@us.ibm.com USexploitability 1.6 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimary

affected products (6)

Products and version ranges known to be affected.

IBM MQ Appliance≤ 9.1.LTSenisa_euvdEU
IBM MQ Appliance≤ 8.0enisa_euvdEU
IBM MQ Appliance≤ 9.1.CDenisa_euvdEU
ibm mq appliance8.0 → 8.0.0.15nvdUScpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:*
ibm mq appliance9.1.0.0 → 9.1.0.6nvdUScpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:*
ibm mq appliance9.1.0.0 → 9.2.0.0nvdUScpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:*

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 2020-07-28modified 2026-06-17

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+5664 more

references (13)

External citations — patches, advisories, analysis.

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