Vulnerability-Lookup

CVE-2026-18808 (GCVE-0-2026-18808)

Vulnerability from cvelistv5 – Published: 2026-09-01 13:20 – Updated: 2026-09-01 15:43

Title

Unauthenticated Remote Code Execution via Code Injection in Klemsan's KIO

Summary

Improper Control of Generation of Code ('Code Injection') vulnerability in Klemsan Electrical Electronics Inc. KIO (Klemsan Internet Objects) allows Code Injection. This issue affects KIO (Klemsan Internet Objects): before v1.9.

Severity

9.8 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 15:43 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

TR-CERT mitre root

References

1 reference

URL	Tags
https://siberguvenlik.gov.tr/guvenlik-bildirimler…	government-resource

Impacted products

1 product

Vendor	Product	Version	CPE status
Klemsan Electrical Electronics Inc.	KIO (Klemsan Internet Objects)	Affected: 0 , < v1.9 (custom)	guessed

Date Public

2026-09-01 13:15

Credits

Yemliha İPEK

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-18808

Vulnerability from fkie_nvd - Published: 2026-09-01 14:17 - Updated: 2026-09-01 16:16

Severity

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

Summary

References

	URL	Tags
	iletisim@usom.gov.tr	https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0963

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "KIO (Klemsan Internet Objects)",
          "vendor": "Klemsan Electrical Electronics Inc.",
          "versions": [
            {
              "lessThan": "v1.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "iletisim@usom.gov.tr"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
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    }
  ],
  "id": "CVE-2026-18808",
  "lastModified": "2026-09-01T16:16:53.830",
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        "impactScore": 5.9,
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        "type": "Secondary"
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GHSA-25FC-9X7F-8X83

Vulnerability from github – Published: 2026-09-01 15:31 – Updated: 2026-09-01 15:31

Details

Improper Control of Generation of Code ('Code Injection') vulnerability in Klemsan Electrical Electronics Inc. KIO (Klemsan Internet Objects) allows Code Injection.

This issue affects KIO (Klemsan Internet Objects): before v1.9.

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18808"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-01T14:17:26Z",
    "severity": "CRITICAL"
  },
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  "id": "GHSA-25fc-9x7f-8x83",
  "modified": "2026-09-01T15:31:12Z",
  "published": "2026-09-01T15:31:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18808"
    },
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  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2026-18808 (GCVE-0-2026-18808)

FKIE_CVE-2026-18808

GHSA-25FC-9X7F-8X83

Tags

Sightings

Nomenclature