IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of…
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01571 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | WebSphere Application Server | 7.0; 8.0; 8.5; 9.0 | — | No fix listed | CNA |
- WebSphere Application Server VendorIBM Affected 7.0; 8.0; 8.5; 9.0 Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:websphere_application_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:* | 8.5 | Vulnerable | IBM |
| cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | IBM |
| cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hewlett Packard Enterprise |
| cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:ibm:z\/os:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:ibm:websphere_application_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:* Versions 8.5 Vulnerable ·IBM
- cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·IBM
- cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise
- cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:ibm:z\/os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38951
- 2026-10-03 Alias added: GHSA-g3vr-f28g-hxqc
References
More IBM Websphere Application Server vulnerabilities
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-00403 modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through… CVSS 2.0HIGH 10.0
- TI-2019-03185 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2020-03809 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
- TI-2025-24648 IBM WebSphere Application Server code execution CVSS 3.1CRITICAL 9.8
- TI-2020-03807 Deserialization of untrusted data in IBM WebSphere Application Server CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-38951 · CVE Program
- CVE-2021-38951 · NVD
- FIRST EPSS
- GHSA-g3vr-f28g-hxqc · GitHub Advisory Database · CC BY 4.0
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