EUVD-2026-75758
GHSA-623v-grh4-38m7
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
'Privileged user' implies PR:H (DBADM/SYSADM tier); 'certain conditions' implies AC:H rather than the vendor's AC:L.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions.
AnalysisAI
Denial of service in IBM Db2 11.5.0-11.5.9 and 12.1.0-12.1.5 allows a low-privileged authenticated network user to disable specific server functionality under certain conditions, producing both availability and integrity impact. The root cause is CWE-269 (Improper Privilege Management): the server fails to enforce correct privilege boundaries around a particular Db2 operation, allowing a user whose authorization should not extend to that action to invoke it. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated database session to the IBM Db2 server instance; PR:L in the CVSS vector confirms at minimum a low-privilege database account is needed, ruling out unauthenticated exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-supplied CVSS 3.1 score of 8.1 with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H classifies this as high severity, driven by the dual I:H/A:H impact of disabling database functionality over a network without complexity barriers. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the IBM-issued patch documented at https://www.ibm.com/support/pages/node/7286987, which covers both the 11.5.x and 12.1.x release trains. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all IBM Db2 systems running versions 11.5.0-11.5.9 or 12.1.0-12.1.5 through your asset management system and database registry. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
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