Affects IBM Db2, a widely used enterprise database; denial of service against DB servers can disrupt critical business operations and warrants broad IT awareness.
CVE-2026-87958
Privileged-user can disable Db2 server functionality causing denial of service
Is CVE-2026-87958 being exploited?
Not confirmed. CVE-2026-87958 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 0.21% probability of exploitation in the next 30 days.
How severe is CVE-2026-87958?
CVE-2026-87958 is rated High with a CVSS score of 8.1. 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-2026-87958?
Yes. A fix has been recorded for CVE-2026-87958. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-87958 affect?
CVE-2026-87958 affects IBM Db2 11.5.0 - 11.5.9, IBM Db2 12.1.0 - 12.1.5. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-87958?
Apply vendor advisory updates and restrict administrative access immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A privileged/local user can disable Db2 server functionality, causing denial of service and database unavailability.
Patch when possible
- 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.