Buffer overflow in IBM Db2 High Performance Unload load for LUW
Priority LOW 34CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
IBM DB2 High Performance Unload load for LUW 6.1 and 6.5 is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. IBM X-Force ID: 165481.
Why it matters now
EPSS 0.0044 38th 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 High Performance Unload load for LUW | 6.5 | — | No fix listed | CNA |
| IBM | DB2 High Performance Unload load for LUW | 6.1 | — | No fix listed | CNA |
- Db2 High Performance Unload load for LUW VendorIBM Affected 6.5 Fixed in — No fix listed CNA
- DB2 High Performance Unload load for LUW VendorIBM Affected 6.1 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1:*:*:*:*:*:*:* | 6.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:db2_high_performance_unload_load:6.5:*:*:*:*:*:*:* | 6.5 | 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:o:opengroup:unix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Opengroup |
- cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:db2_high_performance_unload_load:6.5:*:*:*:*:*:*:* Versions 6.5 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
- cpe:2.3:o:opengroup:unix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Opengroup
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-4523
- 2026-10-03 Alias added: GHSA-8xjf-2mv7-wrhw
References
More IBM Db2 High Performance Unload Load vulnerabilities
- TI-2019-03374 Untrusted search path in IBM DB2 High Performance Unload load for LUW CVSS 3.1HIGH 7.8
- TI-2019-03283 Improper privilege management in IBM DB2 High Performance Unload load for LUW CVSS 3.1HIGH 7.8
- TI-2019-03282 Uncontrolled search path in IBM DB2 High Performance Unload load for LUW CVSS 3.1HIGH 7.8
- TI-2025-24104 Fixes to common vulnerabilities found in IBM Db2 High Performance Unload CVSS 3.1MEDIUM 6.5
- TI-2025-24103 Fixes to common vulnerabilities found in IBM Db2 High Performance Unload CVSS 3.1MEDIUM 6.5
- TI-2025-24102 Fixes to common vulnerabilities found in IBM Db2 High Performance Unload CVSS 3.1MEDIUM 6.5
Sources
- CVE-2019-4523 · CVE Program
- CVE-2019-4523 · NVD
- FIRST EPSS
- GHSA-8xjf-2mv7-wrhw · GitHub Advisory Database · CC BY 4.0
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