CVE-2026-16693
Received Received - Intake

Hard-Coded Cryptographic Constants in IBM i

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: IBM Corporation

Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to the use of hardcoded cryptographic constants to obfuscate encryption keys.

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Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-05
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-16693
EUVD
EUVD-2026-71486

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm i 7.6
ibm i 7.5
ibm i 7.4
ibm i 7.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-327 The product uses a broken or risky cryptographic algorithm or protocol.

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Executive Summary

IBM i versions 7.6, 7.5, 7.4, and 7.3 use hardcoded cryptographic constants to obfuscate encryption keys. This flaw allows a remote authenticated attacker to obtain sensitive information by exploiting the weak obfuscation method.

Impact Analysis

An attacker could gain access to sensitive data due to weak encryption key protection. This may lead to unauthorized data exposure or further attacks on the system if exploited.

Mitigation Strategies

Apply IBM i PTFs or updates that address the use of hardcoded cryptographic constants. Review and regenerate encryption keys to ensure they are not obfuscated with weak constants. Monitor IBM i security advisories for patches.

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