CVE-2019-4656

mediumpriority · track · 27EPSS 0.014 · 73 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.44% (73rd) EPSS

CVSS 4 · medium

Is it mine?

60 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.

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

v3.06.5mediumCVSS:3.0/UI:N/C:N/S:U/A:H/I:N/AC:L/PR:L/AV:N/RC:C/E:U/RL:Osecondary · ENISA EU

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@us.ibm.com USexploitability 2.8 · 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 (60)

Products and version ranges known to be affected.

IBM MQ 8.0all versionscert_bundDEcpe:/a:ibm:mq:8.0
IBM MQ 9.0 LTSall versionscert_bundDEcpe:/a:ibm:mq:9.0_lts
IBM MQ 9.1 CDall versionscert_bundDEcpe:/a:ibm:mq:9.1_cd
IBM MQ 9.1 LTSall versionscert_bundDEcpe:/a:ibm:mq:9.1_lts
IBM MQ≤ 9.1.3enisa_euvdEU
IBM MQ≤ 9.1.1enisa_euvdEU
IBM MQ≤ 7.5.0.8enisa_euvdEU
IBM MQ≤ 7.1.0.4enisa_euvdEU
IBM MQ≤ 7.1.0.9enisa_euvdEU
IBM MQ≤ 7.5.0.7enisa_euvdEU
IBM MQ≤ 8.0.0.5enisa_euvdEU
IBM MQ≤ 9.1enisa_euvdEU
IBM MQ≤ 9.0.0.8enisa_euvdEU
IBM MQ≤ 7.1.0.8enisa_euvdEU
IBM MQ≤ 8.0.0.10enisa_euvdEU
IBM MQ≤ 8.0.0.7enisa_euvdEU
IBM MQ≤ 7.5.0.1enisa_euvdEU
IBM MQ≤ 7.5.0.9enisa_euvdEU
IBM MQ≤ 9.0.0.5enisa_euvdEU
IBM MQ≤ 8.0.0.8enisa_euvdEU

showing 20 of 60

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1826IBM MQ: Mehrere SchwachstellenDeutsch2020-03-16csaf · cert_bundDE
Ein lokaler oder entfernter, authentisierter Angreifer kann mehrere Schwachstellen in IBM MQ ausnutzen, um Informationen offenzulegen oder einen Denial of Service Zustand herbeizuführen.

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 2020-03-16modified 2026-06-17

references (12)

External citations — patches, advisories, analysis.

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