# CVE-2026-84875: IBM Guardium Data Protection buffer overflow in Sniffer

Source: https://junglewise.ai/threats/cve-2026-84875-ibm-guardium-data-protection-12-0-12-1-and-12-2-could-allow-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-08. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-84875 · Severity: high · CVSS 7.5 · Published 2026-10-08

IBM Guardium Data Protection is a database security appliance that monitors and protects database activity and compliance. A buffer overflow vulnerability in the Sniffer component could allow a remote attacker with database access privileges to execute arbitrary code on the appliance, leading to complete compromise of the monitoring and protection infrastructure.

Technologies: [IBM Guardium Data Protection](https://junglewise.ai/threats/technologies/guardium-data-protection). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-84875 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84875 being exploited in the wild.

**How severe is CVE-2026-84875?** High severity, with a CVSS score of 7.5, published 8 October 2026.

**Which products and versions are affected?** IBM Guardium Data Protection 12.0, 12.1, 12.2.

**Is there a fix for CVE-2026-84875?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-84875 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-84875?** Check whether you run IBM Guardium Data Protection at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A buffer overflow (CWE-119) in the Sniffer component of IBM Guardium Data Protection versions 12.0, 12.1, and 12.2 requires network access and authenticated privileges (PR:L) to trigger. An attacker who can send specially crafted input through monitored network traffic or database connections could cause memory corruption and achieve remote code execution on the Collector appliance.

## Affected products

- IBM Guardium Data Protection 12.0, 12.1, 12.2

## Timeline

- 2026-10-08: disclosed

## References

- [https://www.ibm.com/support/pages/node/7291674](https://www.ibm.com/support/pages/node/7291674)

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