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CVE-2026-65058

Trezor Safe 3, Safe 5, and Safe 7 firmware contains a confirmation-binding flaw in the Ethereum sign_tx / sign_tx_eip1559 flow. For contract interactions, the device confirms only the initial calldata chunk while the signature commits to the full streamed calldata. An attacker could present calldata to a victim then supply a different tail that changes the signed transaction. Fixed in 70c9b0c.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a4996c5d3a2eab4d6089ed954ddbc96dd7852b064d377e55dadc6de198f3dd19
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unknown","product":"Safe 7","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"Safe 3","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"Safe 5","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/2
cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/metrics/1/cvssV4_0

Affected products and versions

3 source assertions
{"defaultStatus":"unknown","product":"Safe 7","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"Safe 3","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"Safe 5","vendor":"Trezor","versions":[{"lessThan":"70c9b0c","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"70c9b0c"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/affected/2

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/metrics/1/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-358","description":"CWE-358 Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"url","tags":["patch"],"url":"https://github.com/trezor/trezor-firmware/commit/70c9b0c07748"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/references/0
{"name":"url","tags":["third-party-advisory"],"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-202-02.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/references/2
{"name":"url","tags":["vdb-entry"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-65058"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a07dcb68a013e2395d38d89bb0baa23a9a82ef2a34435e2b2ecbc72da127a0d · sha256:080199b931d2496a… · /containers/cna/references/1

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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