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CVE-2026-10846

NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a245aff8b0c16f02010de23205b2ac1e7468f39b48dc639a49a03eec9e59d4d1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"ldns","vendor":"NLnet Labs","versions":[{"lessThan":"1.9.1","status":"affected","version":"1.2.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:10e42974a53c7860fb95c0f961910d2749ee3d1cdd82c47560908ddf6cff25e8 · sha256:c0fc9b501ac65232… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:10e42974a53c7860fb95c0f961910d2749ee3d1cdd82c47560908ddf6cff25e8 · sha256:c0fc9b501ac65232… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-346","description":"CWE-346 Origin Validation Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10e42974a53c7860fb95c0f961910d2749ee3d1cdd82c47560908ddf6cff25e8 · sha256:c0fc9b501ac65232… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/06/10/2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10e42974a53c7860fb95c0f961910d2749ee3d1cdd82c47560908ddf6cff25e8 · sha256:c0fc9b501ac65232… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://www.nlnetlabs.nl/downloads/ldns/CVE-2026-10846.txt"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10e42974a53c7860fb95c0f961910d2749ee3d1cdd82c47560908ddf6cff25e8 · sha256:c0fc9b501ac65232… · /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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