CVE-2021-32029
Status: ModifiedMedium (6.5)—
A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.50%
- Percentile among all scored CVEs: 73
- Score date: 10/6/2026
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 (2)
CWEs
- CWE-200
- CWE-125
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32029/
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32029/
Raw JSON (NVD)
Show
{
"id": "CVE-2021-32029",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"authentication": "SINGLE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "postgresql",
"versions": [
{
"status": "affected",
"version": "postgresql 13.3, postgresql 12.7, postgresql 11.12"
}
]
}
]
}
],
"published": "2021-10-08T17:15:07.493",
"references": [
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956883",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://security.netapp.com/advisory/ntap-20211112-0003/",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://www.postgresql.org/support/security/CVE-2021-32029/",
"tags": [
"Vendor Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956883",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.netapp.com/advisory/ntap-20211112-0003/",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.postgresql.org/support/security/CVE-2021-32029/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-200"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality."
},
{
"lang": "es",
"value": "Se ha encontrado un fallo en postgresql. usando un comando UPDATE ... RETURNING en una tabla diseñada a tal efecto, un usuario autenticado de la base de datos podía leer bytes arbitrarios de la memoria del servidor. La mayor amenaza de esta vulnerabilidad es para la confidencialidad de los datos"
}
],
"lastModified": "2026-06-17T03:52:42.200",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "95BFF98E-4431-436C-9D04-62CE5AF7F4BA",
"versionEndExcluding": "11.12",
"versionStartIncluding": "11.0"
},
{
"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4CEB317C-7E3F-4964-9D38-43A483EBFD86",
"versionEndExcluding": "12.7",
"versionStartIncluding": "12.0"
},
{
"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "925E45D9-7DF8-4914-A384-88CEF05E8B75",
"versionEndExcluding": "13.3",
"versionStartIncluding": "13.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72A54BDA-311C-413B-8E4D-388AD65A170A"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}