CVE-2026-84891 Vulnerability Analysis & Exploit Details

CVE-2026-84891
Vulnerability Scoring

5.9
/10
Significant Risk

Security assessments indicate that CVE-2026-84891 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-84891 Details

Status: Analyzed

Last updated: 🕔 15 Oct 2026, 17:05 UTC
Originally published on: 🕙 08 Oct 2026, 22:17 UTC

Time between publication and last update: 6 days

CVSS Release: version 3

CVSS3 Source

psirt@us.ibm.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-84891 Vulnerability Summary

CVE-2026-84891: IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to obtain sensitive information due to use of hard-coded credentials.

Assessing the Risk of CVE-2026-84891

Access Complexity Graph

The exploitability of CVE-2026-84891 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-84891

CVE-2026-84891 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-84891, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-84891, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-84891 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: None
    CVE-2026-84891 poses no threat to data integrity.
  • Availability: None
    CVE-2026-84891 does not impact system availability.

CVE-2026-84891 References

External References

CWE Common Weakness Enumeration

CWE-798

CAPEC Common Attack Pattern Enumeration and Classification

  • Read Sensitive Constants Within an Executable CAPEC-191 An adversary engages in activities to discover any sensitive constants present within the compiled code of an executable. These constants may include literal ASCII strings within the file itself, or possibly strings hard-coded into particular routines that can be revealed by code refactoring methods including static and dynamic analysis.
  • Try Common or Default Usernames and Passwords CAPEC-70 An adversary may try certain common or default usernames and passwords to gain access into the system and perform unauthorized actions. An adversary may try an intelligent brute force using empty passwords, known vendor default credentials, as well as a dictionary of common usernames and passwords. Many vendor products come preconfigured with default (and thus well-known) usernames and passwords that should be deleted prior to usage in a production environment. It is a common mistake to forget to remove these default login credentials. Another problem is that users would pick very simple (common) passwords (e.g. "secret" or "password") that make it easier for the attacker to gain access to the system compared to using a brute force attack or even a dictionary attack using a full dictionary.

Vulnerable Configurations

  • cpe:2.3:a:ibm:guardium_data_protection:12.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:guardium_data_protection:12.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:guardium_data_protection:12.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:guardium_data_protection:12.1:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:guardium_data_protection:12.2:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:guardium_data_protection:12.2:*:*:*:*:*:*:*

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