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CVE-2026-47703

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dns_id=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response matching for forwarded queries. This issue is fixed in version 0.107.75.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f0f517559e447d3459100b16d4ae55192775bc2b7b9d2ab94bc98fa25ce458db
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

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-330","description":"CWE-330: Use of Insufficiently Random Values","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"AdGuardHome","vendor":"AdguardTeam","versions":[{"status":"affected","version":"< 0.107.75"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-330","description":"CWE-330: Use of Insufficiently Random Values","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/AdguardTeam/AdGuardHome/security/advisories/GHSA-xgx4-4h9w-53pv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /containers/adp/0/references/0
{"name":"https://github.com/AdguardTeam/AdGuardHome/security/advisories/GHSA-xgx4-4h9w-53pv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/AdguardTeam/AdGuardHome/security/advisories/GHSA-xgx4-4h9w-53pv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cb6606eb05527f2f3021088fca237e8133fd558c892edf68e0b9fbc16c65f124 · sha256:d40fe8eb86358b89… · /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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