FKIE_CVE-2026-34232

Vulnerability from fkie_nvd - Published: 2026-04-17 20:16 - Updated: 2026-04-20 19:03
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
References
security-advisories@github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
security-advisories@github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
security-advisories@github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
security-advisories@github.comhttps://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7jq3-6j3c-5cm2
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14."
    }
  ],
  "id": "CVE-2026-34232",
  "lastModified": "2026-04-20T19:03:07.607",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-17T20:16:34.977",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7jq3-6j3c-5cm2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-228"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.