CVE-2026-84058 — Guardium Data Protection
HIGHCVE-2026-84058 is a high-severity (CVSS 8.1) Buffer Overflow vulnerability in ibm guardium data protection. No vendor fix is recorded yet; mitigation options are listed below.
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…
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.
Affected Products
guardium data protectionibmDetection & mitigation playbook
Vendor / applianceDetect
Inventory every ibm guardium data protection deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2026-84058 yet — track the ibm guardium data protection advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2026-84058 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.