CVE-2026-5794 (GCVE-0-2026-5794)

Vulnerability from cvelistv5 – Published: 2026-04-28 17:09 – Updated: 2026-04-29 14:06
VLAI
Title
Vulnerability in Cryptobox allows an authenticated user to trigger an account lockout
Summary
A vulnerability affecting the detailed versions of Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request.
Severity
4.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-28 18:33 UTC
CWE
  • CWE-694 - Use of multiple resources with duplicate identifier
Assigner
References
Impacted products
Vendor Product Version CPE status
Ercom Cryptobox Unaffected: 4.40.175
Unaffected: 4.37.237 , < 4.38.0 (semver)
guessed Create a notification for this product.
Date Public
2026-04-29 14:04
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-5794",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-28T18:33:48.530783Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-28T18:33:57.912Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "modules": [
            "Cryptobox server"
          ],
          "product": "Cryptobox",
          "vendor": "Ercom",
          "versions": [
            {
              "status": "unaffected",
              "version": "4.40.175"
            },
            {
              "lessThan": "4.38.0",
              "status": "unaffected",
              "version": "4.37.237",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2026-04-29T14:04:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A vulnerability affecting the detailed versions of\u0026nbsp;Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request."
            }
          ],
          "value": "A vulnerability affecting the detailed versions of\u00a0Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-2",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-2 Inducing Account Lockout"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "UNREPORTED",
            "privilegesRequired": "LOW",
            "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:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-694",
              "description": "CWE-694 Use of multiple resources with duplicate identifier",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-29T14:06:08.155Z",
        "orgId": "9d5917ae-205d-4ae5-8749-1f49479b1395",
        "shortName": "THA-PSIRT"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://info.cryptobox.com/doc/v4.40/4.40.en/"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Vulnerability in Cryptobox allows an authenticated user to trigger an account lockout",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9d5917ae-205d-4ae5-8749-1f49479b1395",
    "assignerShortName": "THA-PSIRT",
    "cveId": "CVE-2026-5794",
    "datePublished": "2026-04-28T17:09:55.609Z",
    "dateReserved": "2026-04-08T13:20:07.168Z",
    "dateUpdated": "2026-04-29T14:06:08.155Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-5794",
      "date": "2026-09-28",
      "epss": "0.00396",
      "percentile": "0.31224"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "affected",
                "modules": [
                  "Cryptobox server"
                ],
                "product": "Cryptobox",
                "vendor": "Ercom",
                "versions": [
                  {
                    "status": "unaffected",
                    "version": "4.40.175"
                  },
                  {
                    "lessThan": "4.38.0",
                    "status": "unaffected",
                    "version": "4.37.237",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "psirt@thalesgroup.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability affecting the detailed versions of\u00a0Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request."
          }
        ],
        "id": "CVE-2026-5794",
        "lastModified": "2026-06-17T10:59:39.427",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 4.9,
                "baseSeverity": "MEDIUM",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "UNREPORTED",
                "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": "LOW",
                "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:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "psirt@thalesgroup.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-5794",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-28T18:33:48.530783Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-04-28T19:37:47.390",
        "references": [
          {
            "source": "psirt@thalesgroup.com",
            "url": "https://info.cryptobox.com/doc/v4.40/4.40.en/"
          }
        ],
        "sourceIdentifier": "psirt@thalesgroup.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-694"
              }
            ],
            "source": "psirt@thalesgroup.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:35:33+00:00",
      "cve": "CVE-2026-5794",
      "id": "CVE-2026-5794",
      "initial_release_date": "2026-04-29T14:04:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Vulnerability in Cryptobox allows an authenticated user to trigger an account lockout",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5794.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-5794",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-04-28T18:33:48.530783Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-04-28T18:33:53.379Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "affected",
              "modules": [
                "Cryptobox server"
              ],
              "product": "Cryptobox",
              "vendor": "Ercom",
              "versions": [
                {
                  "status": "unaffected",
                  "version": "4.40.175"
                },
                {
                  "lessThan": "4.38.0",
                  "status": "unaffected",
                  "version": "4.37.237",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "datePublic": "2026-04-29T14:04:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "A vulnerability affecting the detailed versions of\u0026nbsp;Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request."
                }
              ],
              "value": "A vulnerability affecting the detailed versions of\u00a0Cryptobox allows a legitimate user to prevent another to login by triggering an account lockout via sending a specially crafted request."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-2",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-2 Inducing Account Lockout"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 4.9,
                "baseSeverity": "MEDIUM",
                "exploitMaturity": "UNREPORTED",
                "privilegesRequired": "LOW",
                "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:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-694",
                  "description": "CWE-694 Use of multiple resources with duplicate identifier",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-04-29T14:06:08.155Z",
            "orgId": "9d5917ae-205d-4ae5-8749-1f49479b1395",
            "shortName": "THA-PSIRT"
          },
          "references": [
            {
              "tags": [
                "release-notes"
              ],
              "url": "https://info.cryptobox.com/doc/v4.40/4.40.en/"
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Vulnerability in Cryptobox allows an authenticated user to trigger an account lockout",
          "x_generator": {
            "engine": "Vulnogram 1.0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9d5917ae-205d-4ae5-8749-1f49479b1395",
        "assignerShortName": "THA-PSIRT",
        "cveId": "CVE-2026-5794",
        "datePublished": "2026-04-28T17:09:55.609Z",
        "dateReserved": "2026-04-08T13:20:07.168Z",
        "dateUpdated": "2026-04-29T14:06:08.155Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



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.