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Vypr IntelligenceAI-generatedAug 13, 2026· 25 CVEs

IBM i: 25 Vulnerabilities Disclosed, Including Critical RCE and Privilege Escalation Flaws

A batch of 25 vulnerabilities affecting IBM i versions 7.6 through 7.3 were disclosed between August 12-13, 2026, with several critical flaws enabling arbitrary code execution and privilege escalation.

Key findings

  • 25 vulnerabilities disclosed for IBM i across multiple versions (7.6-7.3) in a single batch.
  • Critical flaws include arbitrary code execution and privilege escalation, with CVSS scores up to 8.8.
  • Vulnerabilities span memory corruption (buffer overflows, out-of-bounds reads/writes), SQL injection, and improper input validation.
  • Affected components include NetServer, Navigator for i, and DRDA.
  • IBM has released cumulative updates to address these security issues.

On August 12-13, 2026, a significant batch of 25 vulnerabilities was disclosed for IBM i, affecting versions 7.6, 7.5, 7.4, and 7.3. These vulnerabilities span a range of severity, with several critical flaws allowing for arbitrary code execution and privilege escalation. The disclosures highlight potential risks including denial of service, information disclosure, and security bypasses, underscoring the need for prompt patching and security review for IBM i users.

Several vulnerabilities focus on memory management issues, including buffer overflows and out-of-bounds reads/writes, which can lead to denial of service or arbitrary code execution. For instance, CVE-2026-18077 and CVE-2026-17272 are high-severity stack-based buffer overflows, while CVE-2026-17476 involves an improper buffer write leading to denial of service. High-severity flaws like CVE-2026-17223, CVE-2026-16975, and CVE-2026-18669 are attributed to heap-based buffer overflows or remote code execution, enabling attackers to execute arbitrary code.

Privilege escalation is another major theme within this batch. CVE-2026-18713 and CVE-2026-18669, both rated with a CVSS score of 8.8, allow authenticated users to escalate privileges to root or execute commands with root authority. Additionally, CVE-2026-16722, a high-severity vulnerability, permits authenticated attackers to obtain unauthorized privileges through improper privilege management. CVE-2026-17445 and CVE-2026-18223 also present risks of bypassing security restrictions through various means, including improper validation of user profile names and insufficient input validation for Control Language commands.

SQL injection and related database manipulation vulnerabilities are also present. CVE-2026-17111, a high-severity SQL injection flaw, allows attackers to view, add, modify, or delete database information. CVE-2026-17420 and CVE-2026-17419, both medium-severity, involve improper neutralization of SQL parameters and commands, respectively, leading to security bypasses and the ability to modify SQL tables.

Other notable vulnerabilities include an integer overflow in CVE-2026-18671 leading to a denial of service, and an out-of-bounds read in CVE-2026-17649 and CVE-2026-16853 for information disclosure. CVE-2026-18148 allows for the injection of arbitrary content into Navigator log files due to improper output neutralization.

All disclosed vulnerabilities affect IBM i versions 7.6, 7.5, 7.4, and 7.3. IBM has released security bulletins and recommended applying the latest cumulative updates to address these issues. Users are strongly advised to review the specific CVE details and apply the necessary patches to mitigate the risks associated with these vulnerabilities. Prompt action is crucial to prevent potential exploitation, which could lead to significant data breaches, system compromise, or denial of service.

This batch of vulnerabilities underscores the importance of continuous security monitoring and timely patching for IBM i systems. The range of impacts, from denial of service to arbitrary code execution and privilege escalation, presents a substantial risk to organizations relying on this platform. Staying updated with IBM's security advisories and applying cumulative fixes is essential for maintaining a secure operating environment.

The vulnerabilities disclosed include:

Users should consult IBM's official security advisories for detailed remediation steps and specific version information.

The following CVEs were disclosed: CVE-2026-18671, CVE-2026-18077, CVE-2026-17649, CVE-2026-17476, CVE-2026-17438, CVE-2026-17272, CVE-2026-17216, CVE-2026-17223, CVE-2026-17029, CVE-2026-17004, CVE-2026-16975, CVE-2026-16887, CVE-2026-16878, CVE-2026-16853, CVE-2026-16722, CVE-2026-16692, CVE-2026-18148, CVE-2026-17445, CVE-2026-17111, CVE-2026-18713, CVE-2026-18669, CVE-2026-18250, CVE-2026-18235, CVE-2026-17420, CVE-2026-17419.

IBM i: 25 Vulnerabilities Disclosed, Including Critical RCE and Privilege Escalation Flaws A batch of 25 vulnerabilities affecting IBM i versions 7.6 through 7.3 were disclosed between August 12-13, 2026, with several critical flaws enabling arbitrary code execution and privilege escalation.

  • 25 vulnerabilities disclosed for IBM i across multiple versions (7.6-7.3) in a single batch.
  • Critical flaws include arbitrary code execution and privilege escalation, with CVSS scores up to 8.8.
  • Vulnerabilities span memory corruption (buffer overflows, out-of-bounds reads/writes), SQL injection, and improper input validation.
  • Affected components include NetServer, Navigator for i, and DRDA.
  • IBM has released cumulative updates to address these security issues.

A stylized IBM i system console with multiple error messages and security alert icons overlayed, with a background depicting interconnected network nodes.

AI-written article. Grounded in 25 CVE records listed below.