Remote Code Exec via Buffer Overflow in IBM Guardium DP <12.3
CVE-2026-84246 Published on October 8, 2026
Multiple vulnerabilities affect the Sniffer component as part of IBM Guardium Data Protection
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
Vulnerability Analysis
CVE-2026-84246 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Classic Buffer Overflow Vulnerability?
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold, or when a program attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the "classic" case in which the program copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.
CVE-2026-84246 has been classified to as a Classic Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-84246
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Affected Versions
IBM Guardium Data Protection:- Version 12.0 is affected.
- Version 12.1 is affected.
- Version 12.2 is affected.