CVE-2026-10543
IBM® Db2® is vulnerable to privilege escalation with a specially crafted query
02 Description
IBM® Db2® is vulnerable to privilege escalation with a specially crafted query
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 33.2% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-12 20:50Z2 MO AGO
- Last updated
- 2026-08-13 13:53Z2 MO AGO
- Reserved
- 2026-06-01
- Assigning CNA
- ibm
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.2)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
- Weaknesses
- CWE-285Improper AuthorizationClass
- Data version
- 5.2
- Document digest
- 0a0a661e84c3e044914300579ae1766dd8dec63b4a774761354001f56a81e5e2
05 Affected products
06 References
07 Remediation
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. ReleaseFixed in mod packAPARDownload URLV11.5TBD https://www.ibm.com/support/pages/node/7087189 V12.1 TBD https://www.ibm.com/support/pages/node/7267513 Security Update #88454 or later for V12.1.5 available at this link: https://www.ibm.com/support/pages/node/7282633 Note: This remediation comes with multiple changes to Db2 functionality that are outlined here: * TRANSFER OWNERSHIP statement https://www.ibm.com/docs/en/db2/12.1.x * New DB2_TRANSFER_OWNER_RULES and DB2_TRANSFER_ALLOW_UNHELD_AUTHS registry variables https://www.ibm.com/docs/en/db2/12.1.x * ADMIN_MOVE_TABLE procedure https://www.ibm.com/docs/en/db2/12.1.x * ADMIN_COPY_SCHEMA procedure https://www.ibm.com/docs/en/db2/12.1.x * ALTOBJ procedure https://www.ibm.com/docs/en/db2/12.1.x 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.