CVE-2021-29843
mediumpriority · track · 26EPSS 0.009 · 61 %ileEUUSgrimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.94% (61st) EPSS
CVSS 4 · medium
Who says so?
3 sources
cnnvd · enisa_euvd · nvd
EPSS · scored 2026-10-27
IBM MQ 9.1 LTS, 9.1 CD, 9.2 LTS, and 9.2CD is vulnerable to a denial of service attack caused by an issue processing message properties. IBM X-Force ID: 205203.
01
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
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/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
02
weaknesses
The CWE weakness classes this flaw belongs to.
CWE-400USLLM-inferred
03
affected products (7)
Products and version ranges known to be affected.
04
also known as (3)
Other names and identifiers for this entity.
05
sources
Which sources assert this record, and when.
06
references (10)
External citations — patches, advisories, analysis.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/205203cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-29843cnnvd
- https://vigilance.fr/vulnerability/IBM-MQ-denial-of-service-via-Message-Properties-36821cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.3710cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.3959cnnvd
- https://www.ibm.com/support/pages/node/6513681cnnvd
- https://exchange.xforce.ibmcloud.com/vulnerabilities/205203enisa_euvd
- https://www.ibm.com/support/pages/node/6513681enisa_euvd
scry
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