Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-84058
IBM Guardium Data Protection — Multiple vulnerabilities affect the Sniffer component as part of IBM Guardium Data Protection
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H H H 9.8 .0037 29.4 —
AFFECTED
Product Versions Fixed
Guardium Data Protection 12.0 – —
TIMELINE
Sep 1 Reserved by ibm
Oct 8 Published (CNA: ibm)
Oct 14 RESCORED — CVE-2026-84058 (IBM Guardium Data Protection). CVSS 8.1 → 9.8 (NVD).
Description
IBM Guardium Data Protection 12.0, 12.1, and 12.2 is vulnerable to a buffer overrun in the TDS (Microsoft SQL Server) PRELOGIN packet decoder. A remote attacker who can send a specially crafted TDS PRELOGIN packet to a network monitored by an IBM Guardium Collector may cause a denial of service or potentially execute arbitrary code on the Collector appliance.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 1, 2026 | Reserved | Reserved by ibm |
| October 8, 2026 | Published | Published (CNA: ibm) |
| October 14, 2026 | RESCORED | RESCORED — CVE-2026-84058 (IBM Guardium Data Protection). CVSS 8.1 → 9.8 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| IBM | Guardium Data Protection | — | 12.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84058 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
