CVE-2026-84440: linux kernel Command Injection — Fix

Description

IBM Guardium Data Protection 12.2 is vulnerable to command injection in the SNMP alert notification functionality. An authenticated attacker who can influence policy alert text can cause attacker-controlled data to be executed as operating system commands by the SNMP alerter service, which runs with root privileges.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0074

Probability of exploitation

0.53%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor	Product	Versions
ibm	guardium_data_protection	All
linux	linux_kernel	All

References

Advisories & Patches

https://www.ibm.com/support/pages/node/7288035

Frequently Asked Questions

What is CVE-2026-84440? +

IBM Guardium Data Protection 12.2 is vulnerable to command injection in the SNMP alert notification functionality. An authenticated attacker who can influence policy alert text can cause attacker-controlled data to be executed as operating system commands by the SNMP alerter service, which runs with root privileges. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-84440? +

CVE-2026-84440 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0074, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-84440? +

CVE-2026-84440 affects products from ibm, linux, specifically: guardium_data_protection, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-84440? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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