Vulnerability-Lookup

CVE-2020-37136 (GCVE-0-2020-37136)

Vulnerability from cvelistv5 – Published: 2026-02-05 16:13 – Updated: 2026-07-15 01:24

Title

ZOC Terminal v7.25.5 - 'Private key file' Denial of Service

Summary

ZOC Terminal 7.25.5 contains a denial of service vulnerability in the private key file input field that allows attackers to crash the application. Attackers can overwrite the private key file input with a 2000-byte buffer, causing the application to become unresponsive when attempting to create SSH key files.

Severity

6.7 (Medium)


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

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-05 18:41 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/48292	exploit
https://www.emtec.com	product
https://www.vulncheck.com/advisories/zoc-terminal…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
EmTec	ZOC Terminal	Affected: 7.25.5 cpe:2.3:a:ejinshan:terminal_security_system:7.25.5:::::::*

Date Public

2020-04-05 00:00

Credits

chuyreds

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2020-37136

Vulnerability from fkie_nvd - Published: 2026-02-05 17:16 - Updated: 2026-06-17 03:17

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://www.emtec.com
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/48292
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/zoc-terminal-private-key-file-denial-of-service

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ZOC Terminal",
          "vendor": "EmTec",
          "versions": [
            {
              "status": "affected",
              "version": "7.25.5"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
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      "lang": "en",
      "value": "ZOC Terminal 7.25.5 contains a denial of service vulnerability in the private key file input field that allows attackers to crash the application. Attackers can overwrite the private key file input with a 2000-byte buffer, causing the application to become unresponsive when attempting to create SSH key files."
    },
    {
      "lang": "es",
      "value": "ZOC Terminal 7.25.5 contiene una vulnerabilidad de denegaci\u00f3n de servicio en el campo de entrada del archivo de clave privada que permite a los atacantes bloquear la aplicaci\u00f3n. Los atacantes pueden sobrescribir la entrada del archivo de clave privada con un b\u00fafer de 2000 bytes, haciendo que la aplicaci\u00f3n deje de responder al intentar crear archivos de clave SSH."
    }
  ],
  "id": "CVE-2020-37136",
  "lastModified": "2026-06-17T03:17:04.973",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 7.5,
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        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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}

GHSA-J4PP-WPPF-QQ42

Vulnerability from github – Published: 2026-02-05 18:30 – Updated: 2026-02-05 18:30

Details

Severity

7.5 (High)


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

6.7 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-37136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-05T17:16:08Z",
    "severity": "MODERATE"
  },
  "details": "ZOC Terminal 7.25.5 contains a denial of service vulnerability in the private key file input field that allows attackers to crash the application. Attackers can overwrite the private key file input with a 2000-byte buffer, causing the application to become unresponsive when attempting to create SSH key files.",
  "id": "GHSA-j4pp-wppf-qq42",
  "modified": "2026-02-05T18:30:31Z",
  "published": "2026-02-05T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37136"
    },
    {
      "type": "WEB",
      "url": "https://www.emtec.com"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/48292"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/zoc-terminal-private-key-file-denial-of-service"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2020-37136 (GCVE-0-2020-37136)

FKIE_CVE-2020-37136

GHSA-J4PP-WPPF-QQ42

Tags

Sightings

Nomenclature

Related by attack behaviour