Vulnerability-Lookup

CVE-2026-81574 (GCVE-0-2026-81574)

Vulnerability from cvelistv5 – Published: 2026-08-27 07:11 – Updated: 2026-08-27 13:32

Title

Format String Vulnerability in Logger

Summary

In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format specifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory and stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and remotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this vulnerability.

Severity

8.2 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 13:32 UTC

CWE

CWE-134 - Use of Externally-Controlled format string

Assigner

wibu

References

1 reference

URL	Tags
https://cdn.wibu.com/fileadmin/wibu_downloads/sec…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
wibu-systems-ag	codemeter-runtime	Affected: 9.00 , < 9.10 (custom) Affected: 8.00 , < 8.41a (custom) Affected: 7.00 Unaffected: 6.00 cpe:2.3:a:wibu-systems-ag:codemeter-runtime:::::::: cpe:2.3:a:wibu-systems-ag:codemeter-runtime:::::::: cpe:2.3:a:wibu-systems-ag:codemeter-runtime:7.00:::::::*

Date Public

2026-08-25 13:00

Credits

Andrew Teylu of Vector Informatik GmbH

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-81574

Vulnerability from fkie_nvd - Published: 2026-08-27 10:16 - Updated: 2026-08-27 17:20

Severity

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

Summary

References

	URL	Tags
	2fc02b1f-71e7-4514-a878-169626f68903	https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103401.pdf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://www.wibu.com/products/codemeter/runtime.html",
          "defaultStatus": "unaffected",
          "product": "codemeter-runtime",
          "vendor": "wibu-systems-ag",
          "versions": [
            {
              "lessThan": "9.10",
              "status": "affected",
              "version": "9.00",
              "versionType": "custom"
            },
            {
              "lessThan": "8.41a",
              "status": "affected",
              "version": "8.00",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "7.00"
            },
            {
              "status": "unaffected",
              "version": "6.00"
            }
          ]
        }
      ],
      "source": "2fc02b1f-71e7-4514-a878-169626f68903"
    }
  ],
  "cveTags": [],
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    }
  ],
  "id": "CVE-2026-81574",
  "lastModified": "2026-08-27T17:20:54.970",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
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          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "2fc02b1f-71e7-4514-a878-169626f68903",
        "type": "Secondary"
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GHSA-7C2R-G494-H73X

Vulnerability from github – Published: 2026-08-27 12:30 – Updated: 2026-08-27 12:30

Details

Severity

8.2 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-81574"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-134"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-27T10:16:40Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-7c2r-g494-h73x",
  "modified": "2026-08-27T12:30:26Z",
  "published": "2026-08-27T12:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81574"
    },
    {
      "type": "WEB",
      "url": "https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103401.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "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-2026-81574 (GCVE-0-2026-81574)

FKIE_CVE-2026-81574

GHSA-7C2R-G494-H73X

Tags

Sightings

Nomenclature