CVE-2026-16702: CWE-476 NULL Pointer Dereference in IBM Db2
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference.
AI Analysis
Technical Summary
IBM Db2 versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.5 contain a null pointer dereference vulnerability (CWE-476) that can be exploited by a remote attacker with valid authentication to cause a denial of service. This flaw allows the attacker to crash the database service, impacting its availability. No information about active exploitation or patches is provided in the data.
Potential Impact
The vulnerability allows a remote authenticated attacker to cause a denial of service by triggering a null pointer dereference. There is no impact on confidentiality or integrity. The availability of the Db2 service can be disrupted, potentially affecting business operations relying on the database.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor IBM's security advisories for updates. Until a fix is available, consider limiting access to trusted authenticated users and applying any recommended workarounds from IBM.
CVE-2026-16702: CWE-476 NULL Pointer Dereference in IBM Db2
Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference.
CVSS v3.1
Score 6.5medium
Affected software
IBM
Db2
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:db2:12.1.5:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM Db2 versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.5 contain a null pointer dereference vulnerability (CWE-476) that can be exploited by a remote attacker with valid authentication to cause a denial of service. This flaw allows the attacker to crash the database service, impacting its availability. No information about active exploitation or patches is provided in the data.
Potential Impact
The vulnerability allows a remote authenticated attacker to cause a denial of service by triggering a null pointer dereference. There is no impact on confidentiality or integrity. The availability of the Db2 service can be disrupted, potentially affecting business operations relying on the database.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor IBM's security advisories for updates. Until a fix is available, consider limiting access to trusted authenticated users and applying any recommended workarounds from IBM.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-23T01:37:51.466Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa85d5955bf5e2cf598a224
Added to database: 09/14/2026, 20:47:21 UTC
Last enriched: 09/14/2026, 21:01:58 UTC
Last updated: 09/15/2026, 05:07:22 UTC
Views: 10
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