Vulnerability-Lookup

FKIE_CVE-2009-20007

Vulnerability from fkie_nvd - Published: 2025-09-16 15:15 - Updated: 2026-10-01 23:10

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.

References

	URL	Tags
	disclosure@vulncheck.com	https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb
	disclosure@vulncheck.com	https://web.archive.org/web/20090116203306/http://www.talkative-irc.com/
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/16459
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/8227
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflow
	disclosure@vulncheck.com	https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://www.exploit-db.com/exploits/16459
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://www.exploit-db.com/exploits/8227
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "IRC client response handler"
          ],
          "product": "Talkative IRC",
          "vendor": "Talkative",
          "versions": [
            {
              "lessThanOrEqual": "0.4.4.16",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "disclosure@vulncheck.com",
      "tags": [
        "unsupported-when-assigned"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication."
    },
    {
      "lang": "es",
      "value": "Talkative IRC v0.4.4.16 es vulnerable a un desbordamiento de b\u00fafer basado en pila al procesar cadenas de respuesta especialmente dise\u00f1adas enviadas a un cliente conectado. Un atacante puede explotar esta falla al enviar un mensaje excesivamente largo que desborda un b\u00fafer de longitud fija, lo que podr\u00eda conducir a la ejecuci\u00f3n de c\u00f3digo arbitrario en el contexto del proceso vulnerable. Esta vulnerabilidad es explotable de forma remota y no requiere autenticaci\u00f3n."
    }
  ],
  "id": "CVE-2009-20007",
  "lastModified": "2026-10-01T23:10:00.233",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2009-20007",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-16T18:16:26.267299Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-16T15:15:42.113",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://web.archive.org/web/20090116203306/http://www.talkative-irc.com/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.exploit-db.com/exploits/16459"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.exploit-db.com/exploits/8227"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflow"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://www.exploit-db.com/exploits/16459"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://www.exploit-db.com/exploits/8227"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

CVE-2009-20007 (GCVE-0-2009-20007)

Vulnerability from cvelistv5 – Published: 2025-09-16 14:34 – Updated: 2026-05-15 11:13 Unsupported When Assigned

Title

Talkative IRC v0.4.4.16 Response Buffer Overflow

Summary

Severity

9.3 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-16 18:16 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

VulnCheck mitre root Scorecard

References

6 references

URL	Tags
https://raw.githubusercontent.com/rapid7/metasplo…	exploit
https://www.exploit-db.com/exploits/8227	exploit
https://www.exploit-db.com/exploits/16459	exploit
https://www.zeroscience.mk/en/vulnerabilities/ZSL…	technical-descriptionexploit
https://web.archive.org/web/20090116203306/http:/…	product
https://www.vulncheck.com/advisories/talkative-ir…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Talkative	Talkative IRC	Affected: 0 , ≤ 0.4.4.16 (custom)

Date Public

2009-03-17 00:00

Credits

Gjoko Krstic "LiquidWorm" of Zero Science Lab

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2009-20007",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-16T18:16:26.267299Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-16T18:16:31.758Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb"
          },
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.exploit-db.com/exploits/8227"
          },
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.exploit-db.com/exploits/16459"
          },
          {
            "tags": [
              "exploit"
            ],
            "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "IRC client response handler"
          ],
          "product": "Talkative IRC",
          "vendor": "Talkative",
          "versions": [
            {
              "lessThanOrEqual": "0.4.4.16",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Gjoko Krstic \"LiquidWorm\" of Zero Science Lab"
        }
      ],
      "datePublic": "2009-03-17T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
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            }
          ],
          "value": "Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
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          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
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              "lang": "en",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T11:13:16.716Z",
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        },
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          ],
          "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php"
        },
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          "tags": [
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          "url": "https://web.archive.org/web/20090116203306/http://www.talkative-irc.com/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflow"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "unsupported-when-assigned"
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    "cveId": "CVE-2009-20007",
    "datePublished": "2025-09-16T14:34:39.071Z",
    "dateReserved": "2025-08-27T18:34:34.964Z",
    "dateUpdated": "2026-05-15T11:13:16.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

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FKIE_CVE-2009-20007

CVE-2009-20007 (GCVE-0-2009-20007)

Tags

Sightings

Nomenclature

Related by attack behaviour