IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.
"}],"value":"IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-602","description":"CWE-602 Client-Side Enforcement of Server-Side Security","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-12T20:49:02.220Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7282951"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the security update containing the interim fix for this issue from Fix Central. These security updates are available based on the most recent level for each impacted release: V11.5.9, V12.1.4 and V12.1.5. They can be applied to any affected level of the appropriate release to remediate this vulnerability.
| Release | Fixed in mod pack | APAR | Download URL |
| V11.5 | TBD | DT474728 | Security Update #87984 or later for V11.5.9 available at this link: https://www.ibm.com/support/pages/node/7087189 |
V12.1 | TBD | Security Update #86025 or later for V12.1.4 available at this link: Security Update #88454 or later for V12.1.5 available at this link: |
IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.
"}],"value":"Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the security update containing the interim fix for this issue from Fix Central. These security updates are available based on the most recent level for each impacted release: V11.5.9, V12.1.4 and V12.1.5. They can be applied to any affected level of the appropriate release to remediate this vulnerability.\n\n\n\n\n\nReleaseFixed in mod packAPARDownload URLV11.5TBD https://www.ibm.com/support/pages/node/7087189 \n\nV12.1\n\n\n\n\n\n\n\nTBD\n\n\n\n\n\n\n\n https://www.ibm.com/support/pages/node/7267513 \n\n\n\nSecurity Update #88454 or later for V12.1.5 available at this link:\n https://www.ibm.com/support/pages/node/7282633 \n\n\n\n\n\n\n\n\n\n\nIBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability."}],"title":"IBM® Db2® is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data."}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-16480","datePublished":"2026-08-12T20:49:02.220Z","dateReserved":"2026-07-21T14:34:45.978Z","dateUpdated":"2026-08-13T13:42:37.356Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-12 21:17:36","lastModifiedDate":"2026-08-13 20:59:20","problem_types":["CWE-602","CWE-602 CWE-602 Client-Side Enforcement of Server-Side Security"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-13T13:41:36.860639Z","id":"CVE-2026-16480","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"16480","Ordinal":"1","Title":"IBM® Db2® is affected by an improper authorization vulnerability","CVE":"CVE-2026-16480","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"16480","Ordinal":"1","NoteData":"IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.","Type":"Description","Title":"IBM® Db2® is affected by an improper authorization vulnerability"}]}}}