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CVE-2026-36607

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute-force attacks via the TDDP password change endpoint (code=10), which lacks the rate limiting applied to the login endpoint (code=7). An attacker on the adjacent network can attempt unlimited passwords without triggering account lockout.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b4b5b5707969b8f043a71331a1bb5f8c4c674f540ced5ac5aea768073160c77
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-307","description":"CWE-307 Improper Restriction of Excessive Authentication Attempts","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-307","description":"CWE-307 Improper Restriction of Excessive Authentication Attempts","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36607.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5fcfecd8e579ba0c7e861ceb0be19ac1d908ece1b8ec75d97b6d2d2c0376597 · sha256:eaf23aa5f9c3fc78… · /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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