IBM Db2 is a widely used enterprise database; a local privilege escalation in DB server software can lead to full system compromise and widespread operational impact.
CVE-2026-105464
Local privilege escalation in IBM Db2 11.5/12.1 allowing elevation to admin/root
Is CVE-2026-105464 being exploited?
Not confirmed. CVE-2026-105464 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.09% probability of exploitation in the next 30 days.
How severe is CVE-2026-105464?
CVE-2026-105464 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-105464?
Not known from our data. No patch reference has been recorded for CVE-2026-105464, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-105464 affect?
CVE-2026-105464 affects IBM Db2 11.5.0 - 11.5.9 (Linux/UNIX/Windows), IBM Db2 12.1.0 - 12.1.5 (Linux/UNIX/Windows), DB2 Connect Server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-105464?
Restrict local access, harden hosts, and apply vendor updates when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker can escalate to root/administrator on Db2 hosts, enabling full system compromise and data access.
Immediate action required
- affected>= 11.5.0 and <= 11.5.9
- affected>= 12.1.0 and <= 12.1.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.