GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2024-20440 (GCVE-0-2024-20440)

Vulnerability from cvelistv5 – Published: 2024-09-04 16:28 – Updated: 2025-04-01 21:47
VLAI Shadowserver Previdian
Summary
A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-05 00:00 UTC
CWE
  • CWE-532 - Insertion of Sensitive Information into Log File
Impacted products
Vendor Product Version CPE status
Cisco Cisco Smart License Utility Affected: 2.1.0
Affected: 2.0.0
Affected: 2.2.0
guessed Create a notification for this product.
cisco cisco_smart_license_utility Affected: 2.1.0
Affected: 2.0.0
Affected: 2.2.0
    cpe:2.3:a:cisco:cisco_smart_license_utility:*:*:*:*:*:*:*:*
Create a notification for this product.
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2024-20440

Status: Confirmed

Status Updated: 2026-09-07 00:00 UTC

Exploited: Yes


Characteristics
Severity: 75.0

Timestamps
First Seen: 2025-11-17
Asserted: 2025-11-17
Last Seen: 2026-09-07

Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Cisco / Cisco Smart Licensing Utility | Class: other-software | Severity: High (CVSS 7.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-07: 2

Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver


Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 1
Vendor Cisco
30D Avg 1
90D Avg 1
Product Cisco Smart Licensing Utility
Cisa Kev no
Connections 2
Observation Date 2026-09-07
Vulnerability Class CVSS
Vulnerability Score 7.5
Vulnerability Severity High

References

Created: 2026-07-01 05:54 UTC | Updated: 2026-09-09 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2024-20440

Status: Confirmed

Status Updated: 2026-01-25 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2026-01-25
Asserted: 2026-01-25

Scope
Notes: KEVIntel entry: A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This... | Affected: Cisco / Cisco Smart License Utility | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This...
Vendor Cisco
Product Cisco Smart License Utility
Added Date 2026-01-25T00:00:00.000Z
Cvss Score 7.5
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:cisco:cisco_smart_license_utility:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "cisco_smart_license_utility",
            "vendor": "cisco",
            "versions": [
              {
                "status": "affected",
                "version": "2.1.0"
              },
              {
                "status": "affected",
                "version": "2.0.0"
              },
              {
                "status": "affected",
                "version": "2.2.0"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-20440",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-05T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-06T03:55:17.035Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Smart License Utility",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.0"
            },
            {
              "status": "affected",
              "version": "2.0.0"
            },
            {
              "status": "affected",
              "version": "2.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information.\r\n\r\nThis vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "In March 2025, the Cisco Product Security Incident Response Team (PSIRT) became aware of attempted exploitation of this vulnerability in the wild. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-532",
              "description": "Insertion of Sensitive Information into Log File",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-04-01T21:47:09.128Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-cslu-7gHMzWmw",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw"
        }
      ],
      "source": {
        "advisory": "cisco-sa-cslu-7gHMzWmw",
        "defects": [
          "CSCwi47950"
        ],
        "discovery": "INTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2024-20440",
    "datePublished": "2024-09-04T16:28:49.040Z",
    "dateReserved": "2023-11-08T15:08:07.676Z",
    "dateUpdated": "2025-04-01T21:47:09.128Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-20440",
      "date": "2026-09-20",
      "epss": "0.51897",
      "percentile": "0.98899"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "Cisco Smart License Utility",
                "vendor": "Cisco",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.1.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.0.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.2.0"
                  }
                ]
              }
            ],
            "source": "psirt@cisco.com"
          },
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:a:cisco:cisco_smart_license_utility:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "cisco_smart_license_utility",
                "vendor": "cisco",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.1.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.0.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.2.0"
                  }
                ]
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:cisco:smart_license_utility:2.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AF65619C-5372-4141-9919-3A7E13D8D557",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:cisco:smart_license_utility:2.1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F0FAD450-9306-4ECB-BC8B-7CE19CCC4353",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:cisco:smart_license_utility:2.2.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "46259FBD-210E-4DD4-866A-A0F4FF485BC2",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information.\r\n\r\nThis vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad en Cisco Smart Licensing Utility podr\u00eda permitir que un atacante remoto no autenticado acceda a informaci\u00f3n confidencial. Esta vulnerabilidad se debe a un exceso de verbosidad en un archivo de registro de depuraci\u00f3n. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando una solicitud HTTP manipulada a un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante obtener archivos de registro que contienen datos confidenciales, incluidas las credenciales que se pueden usar para acceder a la API."
          }
        ],
        "id": "CVE-2024-20440",
        "lastModified": "2026-06-17T07:07:06.360",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "psirt@cisco.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-20440",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-05T00:00:00+00:00",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-09-04T17:15:13.517",
        "references": [
          {
            "source": "psirt@cisco.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw"
          }
        ],
        "sourceIdentifier": "psirt@cisco.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-532"
              }
            ],
            "source": "psirt@cisco.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-532"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-28T19:11:07+00:00",
      "cve": "CVE-2024-20440",
      "id": "CVE-2024-20440",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2024-20440",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-20440.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:a:cisco:cisco_smart_license_utility:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "cisco_smart_license_utility",
                "vendor": "cisco",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.1.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.0.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.2.0"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-20440",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-04T17:41:25.370560Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-04T17:43:29.082Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "Cisco Smart License Utility",
              "vendor": "Cisco",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.1.0"
                },
                {
                  "status": "affected",
                  "version": "2.0.0"
                },
                {
                  "status": "affected",
                  "version": "2.2.0"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information.\r\n\r\nThis vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API."
            }
          ],
          "exploits": [
            {
              "lang": "en",
              "value": "In March 2025, the Cisco Product Security Incident Response Team (PSIRT) became aware of attempted exploitation of this vulnerability in the wild. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "format": "cvssV3_1"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-532",
                  "description": "Insertion of Sensitive Information into Log File",
                  "lang": "en",
                  "type": "cwe"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-04-01T21:47:09.128Z",
            "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
            "shortName": "cisco"
          },
          "references": [
            {
              "name": "cisco-sa-cslu-7gHMzWmw",
              "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cslu-7gHMzWmw"
            }
          ],
          "source": {
            "advisory": "cisco-sa-cslu-7gHMzWmw",
            "defects": [
              "CSCwi47950"
            ],
            "discovery": "INTERNAL"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2024-20440",
        "datePublished": "2024-09-04T16:28:49.040Z",
        "dateReserved": "2023-11-08T15:08:07.676Z",
        "dateUpdated": "2025-04-01T21:47:09.128Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…