CVE-2009-2700
Status: ModifiedMedium (4.3)—
src/network/ssl/qsslcertificate.cpp in Nokia Trolltech Qt 4.x does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
- Base score: 4.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.94%
- Percentile among all scored CVEs: 60
- Score date: 10/10/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-20
References
- http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6
- http://secunia.com/advisories/36536
- http://secunia.com/advisories/36702
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:225
- http://www.securityfocus.com/bid/36203
- http://www.ubuntu.com/usn/usn-829-1
- http://www.vupen.com/english/advisories/2009/2499
- http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6
- http://secunia.com/advisories/36536
- http://secunia.com/advisories/36702
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:225
- http://www.securityfocus.com/bid/36203
- http://www.ubuntu.com/usn/usn-829-1
- http://www.vupen.com/english/advisories/2009/2499
Raw JSON (NVD)
Show
{
"id": "CVE-2009-2700",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.3,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2009-09-02T17:30:00.797",
"references": [
{
"url": "http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6",
"source": "cve@mitre.org"
},
{
"url": "http://secunia.com/advisories/36536",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://secunia.com/advisories/36702",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:225",
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/bid/36203",
"source": "cve@mitre.org"
},
{
"url": "http://www.ubuntu.com/usn/usn-829-1",
"source": "cve@mitre.org"
},
{
"url": "http://www.vupen.com/english/advisories/2009/2499",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://secunia.com/advisories/36536",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://secunia.com/advisories/36702",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2009:225",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/bid/36203",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/usn-829-1",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.vupen.com/english/advisories/2009/2499",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "src/network/ssl/qsslcertificate.cpp in Nokia Trolltech Qt 4.x does not properly handle a '\\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
},
{
"lang": "es",
"value": "src/network/ssl/qsslcertificate.cpp en Nokia Trolltech Qt v4.x no gestiona adecuadamente el carácter '\\0'en un nombre de dominio en el campo Subject Alternative Name field de un certificado X.509, lo cual permite a atacantes hombre-en-el-medio (man-in-the-middle) suplantar servidores SSL a su elección a través de certificados manipulados expedidos por una Autoridad de Certificación legítima, una cuestión relacionada con CVE-2009-2408."
}
],
"lastModified": "2026-06-16T23:10:03.840",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:qt:qt:4.0.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C966DAAB-74E1-4594-9CE7-5A1A60F5061E"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.0.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D51BFA7D-281E-49ED-9A4B-60AD5143C4EF"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5A38B91E-698F-4638-BC3B-BD02F3313B70"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7629BAB0-5077-4B82-9F11-B228E8EAFA17"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "76366D45-3604-49D1-BD97-8A9FACEA2171"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EEEF60A1-5FF0-465F-A872-62F80899F870"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4D5386EE-376B-4773-8687-5314BFF35E41"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.1.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4ACE447E-BFBC-4059-9786-F8E5F512AEAA"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.2.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E3AC6465-B459-410E-A5C5-EBFF5C866009"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.2.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EF48233D-EFFE-40A1-B50A-F2184D9CF325"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.2.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "610017B4-3C0A-4A59-82A1-4E20BCF786E6"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D848BD49-3C88-4458-B8AB-AAD8DEB790BD"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0A12D978-B6FF-4C67-97D4-91A285C47813"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7DBD073E-F3E0-4273-81E9-AF010B711F08"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0D58ACBA-7DF3-403A-AC0E-94749383C750"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "59D6E752-3B2E-4A95-A76A-3326CD490EDD"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.3.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7A27E4EC-9573-4C82-9B78-244DB0B06FA4"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "678A25E8-57E3-4E0C-9B24-C68F11F108BA"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D16BB8CE-3871-4DFA-84BB-C089894437D2"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.4.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "965B37FD-E22F-4AA7-BDC2-147A9962CFD5"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.4.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FEE12FD7-2FB2-444A-A660-86294646F8A1"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.5.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EA4B9F55-4BFF-4FD3-A8BC-842B0467DCD5"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.5.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9DA805A7-7C62-49FD-B9A2-F81C981691C3"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.5.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D5596442-5608-439B-8BE6-53A70F20C079"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.5.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "29FD745E-4B61-417F-BC66-386877E75351"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2B74E5F5-CEE1-47B1-BE84-7F1C45D4FDD8"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "82A767D8-6194-4ED5-B9BE-2A14541C141F"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "874E217C-98AC-4F0B-B120-D721164912CD"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3051F46B-E301-4DF7-A89B-4E8495617888"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0C8BED3D-E6E9-4A7F-A186-DD7DC20706D1"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.6.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1C5CFCD4-6CB1-489D-9619-B0169EA1719C"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5C2D2DA2-4D77-4396-97A7-D4ED0F633E19"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1BC1BC2C-6D99-463F-9326-AF9B468E03F2"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "342A67CF-B332-46D1-A3FF-604552953C66"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9239A893-506A-4853-8B00-FCDE5EC3E5DB"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1A6196C5-BB95-447A-B610-4765AB702F96"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.7.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3E398049-C78A-452C-9FBF-E32DC86BDBD0"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B307395A-36B6-4F54-92C9-D732580F3EBE"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.8.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F9D0CB6E-5275-4D51-81F1-84D456F936B9"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.8.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "214A1125-FBE9-433D-8B05-10595CD59F24"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.8.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EB7CC6B1-7E40-4D6A-94CF-7412EA3F8534"
},
{
"criteria": "cpe:2.3:a:qt:qt:4.8.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "062A62AA-EC5B-4D8E-9337-D25DF4FE56FA"
}
],
"operator": "OR"
}
]
}
],
"vendorComments": [
{
"comment": "Not vulnerable. This issue did not affect the versions of qt and qt4 as shipped with Red Hat Enterprise Linux 3, 4, or 5. Affected code was introduced upstream in version 4.3.",
"lastModified": "2009-09-03T00:00:00",
"organization": "Red Hat"
}
],
"sourceIdentifier": "cve@mitre.org"
}