CVE-2021-38951
mediumpriority · track · 31EPSS 0.016 · 75 %ileEUUSEPSS · scored 2026-10-27
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available CPU resources. IBM X-Force ID: 211405.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
- ibm websphere application server= 7.0nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server= 8.0nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server= 8.5nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server= 9.0nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/211405cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-38951cnnvd
- https://vigilance.fr/vulnerability/WebSphere-AS-overload-via-Crafted-Request-37034cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.4170cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.4247cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.0194cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2022010632cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2022021421cnnvd
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