IBM Db2 denial of service
Priority LOW 35CWE-20Published · 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 · CNA. Fix status from CNA.
Summary
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 is vulnerable to denial of service with a specially crafted query. IBM X-Force ID: 254037.
Why it matters now
EPSS 0.01018 63rd 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 | Db2 for Linux, UNIX and Windows | 11.1, 11.5 | — | No fix listed | CNA |
- Db2 for Linux, UNIX and Windows VendorIBM Affected 11.1, 11.5 Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:* | 11.5 – 11.5.8 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:-:*:*:*:*:*:* | 11.1.4 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp1:*:*:*:*:*:* | 11.1.4 fp1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp2:*:*:*:*:*:* | 11.1.4 fp2 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp3:*:*:*:*:*:* | 11.1.4 fp3 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp4:*:*:*:*:*:* | 11.1.4 fp4 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp5:*:*:*:*:*:* | 11.1.4 fp5 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2:11.1.4:fp6:*:*:*:*:*:* | 11.1.4 fp6 | Vulnerable | 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:db2:*:*:*:*:*:*:*:* Versions 11.5 – 11.5.8 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:-:*:*:*:*:*:* Versions 11.1.4 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp1:*:*:*:*:*:* Versions 11.1.4 fp1 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp2:*:*:*:*:*:* Versions 11.1.4 fp2 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp3:*:*:*:*:*:* Versions 11.1.4 fp3 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp4:*:*:*:*:*:* Versions 11.1.4 fp4 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp5:*:*:*:*:*:* Versions 11.1.4 fp5 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2:11.1.4:fp6:*:*:*:*:*:* Versions 11.1.4 fp6 Vulnerable ·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-2023-30991
- 2026-10-03 Alias added: GHSA-rgrr-m4xm-32mh
References
More IBM Db2 vulnerabilities
- TI-2007-02494 Multiple buffer overflows in the DB2 JDBC Applet Server (DB2JDS) service in IBM DB2 9.x… CVSS 2.0HIGH 10.0
- TI-2010-03546 Stack-based buffer overflow in the validateUser implementation in the… CVSS 2.0HIGH 10.0
- TI-2026-08862 IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling CVSS 3.1CRITICAL 9.8
- TI-2007-03566 IBM DB2 Universal Database (UDB) Administration Server (DAS) 8 before Fix Pack 16 and 9… CVSS 2.0HIGH 10.0
- TI-2008-06509 Buffer overflow in the DAS server in IBM DB2 8 before FP17, 9.1 before FP5, and 9.5… CVSS 2.0HIGH 10.0
- TI-2026-09068 IBM® Db2® is vulnerable to privilege escalation with a specially crafted query CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-30991 · CVE Program
- CVE-2023-30991 · NVD
- FIRST EPSS
- GHSA-rgrr-m4xm-32mh · GitHub Advisory Database · CC BY 4.0
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