Vulnerability-Lookup

VAR-202407-0233

Vulnerability from variot - Updated: 2026-04-10 23:53

Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Electronics CNCSoft-G2. Delta Electronics CNCSoft-G2 is a human-machine interface (HMI) software from Delta Electronics, a Chinese company

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}

CVE-2024-39880 (GCVE-0-2024-39880)

Vulnerability from cvelistv5 – Published: 2024-07-09 21:21 – Updated: 2025-08-27 20:42

Title

Stack-based Buffer Overflow in Delta Electronics CNCSoft-G2

Summary

Severity ?

8.4 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.8 (High)


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

CWE

CWE-121 - STACK-BASED BUFFER OVERFLOW CWE-121

Assigner

icscert

References

URL

Tags

https://www.cisa.gov/news-events/ics-advisories/i…

government-resource

Impacted products

	Vendor	Product	Version
	Delta Electronics	CNCSoft-G2	Affected: 2.0.0.5

Credits

Bobby Gould and Fritz Sands of Trend Micro Zero Day Initiative reported these vulnerabilities to CISA.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:delta_electronics:cncsoft-g2:2.0.0.5:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "cncsoft-g2",
            "vendor": "delta_electronics",
            "versions": [
              {
                "status": "affected",
                "version": "2.0.0.5"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-39880",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-10T13:58:44.937267Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-27T20:42:57.877Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:33:11.485Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
              "government-resource",
              "x_transferred"
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            "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-191-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CNCSoft-G2",
          "vendor": "Delta Electronics",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.0.5"
            }
          ]
        }
      ],
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        {
          "lang": "en",
          "type": "finder",
          "value": "Bobby Gould and Fritz Sands of Trend Micro Zero Day Initiative reported these vulnerabilities to CISA."
        }
      ],
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          "lang": "en",
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              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eDelta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process.\u003c/span\u003e"
            }
          ],
          "value": "Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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          ]
        },
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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      "providerMetadata": {
        "dateUpdated": "2024-07-09T23:12:00.978Z",
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
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              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eDelta Electronics recommends users update to \u003c/span\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://downloadcenter.deltaww.com/en-US/DownloadCenter?v=1\u0026amp;q=cncsoft\u0026amp;sort_expr=cdate\u0026amp;sort_dir=DESC\"\u003eCNCSoft-G2 V2.1.0.10\u003c/a\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u0026nbsp;or later.\u003c/span\u003e\n\n\u003cbr\u003e"
            }
          ],
          "value": "Delta Electronics recommends users update to  CNCSoft-G2 V2.1.0.10 https://downloadcenter.deltaww.com/en-US/DownloadCenter \u00a0or later."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Stack-based Buffer Overflow in Delta Electronics CNCSoft-G2",
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    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2024-39880",
    "datePublished": "2024-07-09T21:21:47.678Z",
    "dateReserved": "2024-07-01T18:13:23.097Z",
    "dateUpdated": "2025-08-27T20:42:57.877Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

VAR-202407-0233

CVE-2024-39880 (GCVE-0-2024-39880)

Tags

Sightings

Nomenclature