CVE-2019-4378

mediumpriority · track · 26EPSS 0.014 · 72 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.38% (72nd) EPSS

CVSS 4 · medium

Is it mine?

56 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-23

IBM MQ 7.5.0.0 - 7.5.0.9, 7.1.0.0 - 7.1.0.9, 8.0.0.0 - 8.0.0.12, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.0 - 9.1.2 command server is vulnerable to a denial of service attack caused by an authenticated and authorized user using specially crafted PCF messages. IBM X-Force ID: 162084.

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/C:N/A:H/AC:H/S:U/UI:N/AV:N/I:N/PR:L/E:U/RC:C/RL:Osecondary · 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-400USLLM-inferred

affected products (56)

Products and version ranges known to be affected.

IBM MQ 8.0.0.0 - 8.0.0.12all versionscert_bundDEcpe:/a:ibm:mq:8.0.0.0_-_8.0.0.12
IBM MQ 9.0.0.0 - 9.0.0.6all versionscert_bundDEcpe:/a:ibm:mq:9.0.0.0_-_9.0.0.6
IBM MQ 9.1.0 - 9.1.2all versionscert_bundDEcpe:/a:ibm:mq:9.1.0_-_9.1.2
IBM MQ 9.1.0.0-9.1.0.2all versionscert_bundDEcpe:/a:ibm:mq:lts_9.1.0.0_-_9.1.0.2
IBM WebSphere MQ 7.1.0.0 - 7.1.0.9all versionscert_bundDEcpe:/a:ibm:websphere_mq:7.1.0.0_-_7.1.0.9
IBM WebSphere MQ 7.5.0.0 - 7.5.0.9all versionscert_bundDEcpe:/a:ibm:websphere_mq:7.5.0.0_-_7.5.0.9
IBM MQ≤ 9.0.0.6enisa_euvdEU
IBM MQ≤ 8.0.0.7enisa_euvdEU
IBM MQ≤ 7.5.0.9enisa_euvdEU
IBM MQ≤ 7.1.0.1enisa_euvdEU
IBM MQ≤ 7.1.0.8enisa_euvdEU
IBM MQ≤ 8.0.0.11enisa_euvdEU
IBM MQ≤ 8.0.0.2enisa_euvdEU
IBM MQ≤ 7.1.0.0enisa_euvdEU
IBM MQ≤ 7.5.0.0enisa_euvdEU
IBM MQ≤ 9.0.0.0enisa_euvdEU
IBM MQ≤ 7.1.0.6enisa_euvdEU
IBM MQ≤ 8.0.0.0enisa_euvdEU
IBM MQ≤ 7.5.0.1enisa_euvdEU
IBM MQ≤ 8.0.0.1enisa_euvdEU

showing 20 of 56

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1829IBM MQ: Schwachstelle ermöglicht Denial of ServiceDeutsch2019-09-25csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in IBM MQ und IBM WebSphere MQ ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2019-09-26modified 2026-06-17

references (12)

External citations — patches, advisories, analysis.

scry

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