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8 vulnerabilities found for recursor by powerdns

CVE-2025-59030 (GCVE-0-2025-59030)
Vulnerability from nvd
Published
2025-12-09 09:15
Modified
2025-12-09 14:30
CWE
  • CWE-276 - Incorrect Default Permissions
Summary
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
Impacted products
Vendor Product Version
PowerDNS Recursor Version: 5.3.0   
Version: 5.2.0   
Version: 5.1.0   
Create a notification for this product.
Show details on NVD website


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CVE-2025-59029 (GCVE-0-2025-59029)
Vulnerability from nvd
Published
2025-12-09 09:16
Modified
2025-12-09 14:29
CWE
Summary
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
Impacted products
Vendor Product Version
PowerDNS Recursor Version: 5.3.0   
Create a notification for this product.
Show details on NVD website


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CVE-2023-50868 (GCVE-0-2023-50868)
Vulnerability from nvd
Published
2024-02-14 00:00
Modified
2025-11-04 18:20
CWE
  • n/a
Summary
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
References
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.isc.org/blogs/2024-bind-security-release/
https://datatracker.ietf.org/doc/html/rfc5155
https://kb.isc.org/docs/cve-2023-50868
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://access.redhat.com/security/cve/CVE-2023-50868
https://bugzilla.suse.com/show_bug.cgi?id=1219826
http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ vendor-advisory
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ vendor-advisory
https://security.netapp.com/advisory/ntap-20240307-0008/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html mailing-list
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


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CVE-2023-50387 (GCVE-0-2023-50387)
Vulnerability from nvd
Published
2024-02-14 00:00
Modified
2025-11-04 18:20
CWE
  • n/a
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
References
https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ vendor-advisory
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ vendor-advisory
https://security.netapp.com/advisory/ntap-20240307-0007/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html mailing-list
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


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CVE-2025-59029 (GCVE-0-2025-59029)
Vulnerability from cvelistv5
Published
2025-12-09 09:16
Modified
2025-12-09 14:29
CWE
Summary
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
Impacted products
Vendor Product Version
PowerDNS Recursor Version: 5.3.0   
Create a notification for this product.
Show details on NVD website


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CVE-2025-59030 (GCVE-0-2025-59030)
Vulnerability from cvelistv5
Published
2025-12-09 09:15
Modified
2025-12-09 14:30
CWE
  • CWE-276 - Incorrect Default Permissions
Summary
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
Impacted products
Vendor Product Version
PowerDNS Recursor Version: 5.3.0   
Version: 5.2.0   
Version: 5.1.0   
Create a notification for this product.
Show details on NVD website


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CVE-2023-50868 (GCVE-0-2023-50868)
Vulnerability from cvelistv5
Published
2024-02-14 00:00
Modified
2025-11-04 18:20
CWE
  • n/a
Summary
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
References
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.isc.org/blogs/2024-bind-security-release/
https://datatracker.ietf.org/doc/html/rfc5155
https://kb.isc.org/docs/cve-2023-50868
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://access.redhat.com/security/cve/CVE-2023-50868
https://bugzilla.suse.com/show_bug.cgi?id=1219826
http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ vendor-advisory
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ vendor-advisory
https://security.netapp.com/advisory/ntap-20240307-0008/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html mailing-list
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


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CVE-2023-50387 (GCVE-0-2023-50387)
Vulnerability from cvelistv5
Published
2024-02-14 00:00
Modified
2025-11-04 18:20
CWE
  • n/a
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
References
https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ vendor-advisory
https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html mailing-list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/ vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/ vendor-advisory
https://security.netapp.com/advisory/ntap-20240307-0007/
https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html mailing-list
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


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            "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
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            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
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        "title": "CVE Program Container"
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        "metrics": [
          {
            "cvssV3_1": {
              "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",
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                "options": [
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                    "Exploitation": "none"
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                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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          "lang": "en",
          "value": "Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \"KeyTrap\" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records."
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        {
          "url": "https://www.athene-center.de/aktuelles/key-trap"
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        {
          "url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
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          "url": "https://kb.isc.org/docs/cve-2023-50387"
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        {
          "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
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          "url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
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          "url": "https://news.ycombinator.com/item?id=39367411"
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          "url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
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          "url": "https://news.ycombinator.com/item?id=39372384"
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          "url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
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          "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
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          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
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        {
          "name": "FEDORA-2024-fae88b73eb",
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-50387",
    "datePublished": "2024-02-14T00:00:00.000Z",
    "dateReserved": "2023-12-07T00:00:00.000Z",
    "dateUpdated": "2025-11-04T18:20:34.949Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}