RCE in IBM Guardium, a widely used enterprise data-protection product; exploitation could lead to full system compromise and data loss across organizations.
CVE-2026-84246
Remote code execution via buffer overflow in IBM Guardium 12.0–12.2.
Is CVE-2026-84246 being exploited?
Not confirmed. CVE-2026-84246 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 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2026-84246?
CVE-2026-84246 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-2026-84246?
Yes. A fix has been recorded for CVE-2026-84246. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-84246 affect?
CVE-2026-84246 affects IBM Guardium Data Protection 12.0, IBM Guardium Data Protection 12.1, IBM Guardium Data Protection 12.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84246?
Apply IBM patch immediately; isolate affected appliances until updated.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote arbitrary code execution via buffer overflow; attackers can run code, escalate privileges, and access or exfiltrate protected data.
Immediate action required
- affected12.0
- affected12.1
- affected12.2
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.