CVE-2026-16693

IBM i is Affected By Cryptographic Algorithm Weakness in DCM []

Published Sep 4, 2026 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

IBM i Release5770-SS1 Option 34  PTF Number(s)PTF Download Link(s)7.6SJ11156 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11156 7.5SJ11159 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11159 7.4SJ11158 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11158 7.3SJ11157 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11157 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title IBM i is Affected By Cryptographic Algorithm Weakness in DCM []
First Time appeared Ibm
Ibm i
Weaknesses CWE-327
CPEs cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm i
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Sep 4, 2026, 5:27 PM
Reserved
Jul 23, 2026, 1:05 AM
Status
Analyzed
Published
Sep 4, 2026, 5:16 PM
Modified
Sep 8, 2026, 5:29 PM