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CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d37eea1ecea05e121c0b117f9bb7e8cac9fce92539fabbea5eb47729b58f8da5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["DNS over Do53 UDP"],"packageName":"dnsdist","product":"DNSdist","programFiles":["dnsdist-backend.cc"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"1.9.13","status":"affected","version":"1.9.0","versionType":"semver"},{"lessThan":"2.0.4","status":"affected","version":"2.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:28384e9801a413c515dec68ae62becbe9240337f39ad38c00c69f7044d5ffa0c · sha256:86ecfe26001779d1… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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