Vulnerability-Lookup

CVE-2026-16693 (GCVE-0-2026-16693)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:41 – Updated: 2026-09-04 17:27

Title

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

Summary

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.

Severity

4.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 17:27 UTC

CWE

CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7285846	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	i	Affected: 7.6 Affected: 7.5 Affected: 7.4 Affected: 7.3 cpe:2.3:a:ibm:i:7.6:::::::* cpe:2.3:a:ibm:i:7.6.0:::::::* cpe:2.3:a:ibm:i:7.5:::::::* cpe:2.3:a:ibm:i:7.5.0:::::::* cpe:2.3:a:ibm:i:7.4:::::::* cpe:2.3:a:ibm:i:7.4.0:::::::* cpe:2.3:a:ibm:i:7.3:::::::* cpe:2.3:a:ibm:i:7.3.0:::::::*

Show details on NVD website

JSON

To clipboard

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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 \\n\\n\\n\\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1 Option 34\\u00a0\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download 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FKIE_CVE-2026-16693

Vulnerability from fkie_nvd - Published: 2026-09-04 17:16 - Updated: 2026-09-08 14:17

Severity

4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Summary

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.

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7285846

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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            "cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*"
          ],
          "product": "i",
          "vendor": "IBM",
          "versions": [
            {
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              "version": "7.6"
            },
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              "version": "7.4"
            },
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  ],
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  "lastModified": "2026-09-08T14:17:08.940",
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        "impactScore": 3.6,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
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            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-04T17:27:02.751732Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-04T17:16:52.390",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "url": "https://www.ibm.com/support/pages/node/7285846"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ],
      "source": "psirt@us.ibm.com",
      "type": "Secondary"
    }
  ]
}

GHSA-QMWP-Q4J7-M4GP

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

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.

Severity

4.4 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-16693"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-327"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T17:16:52Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-qmwp-q4j7-m4gp",
  "modified": "2026-09-04T18:31:30Z",
  "published": "2026-09-04T18:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16693"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7285846"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-16693 (GCVE-0-2026-16693)

FKIE_CVE-2026-16693

GHSA-QMWP-Q4J7-M4GP

Tags

Sightings

Nomenclature