{"id":"CVE-2026-65058","state":"PUBLISHED","title":"Trezor Safe improper security check in on-device display","description":"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. 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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."}],"affected":[{"vendor":"Trezor","product":"Safe 3","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"70c9b0c","versionType":"custom"},{"version":"70c9b0c","status":"unaffected"}]},{"vendor":"Trezor","product":"Safe 7","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"70c9b0c","versionType":"custom"},{"version":"70c9b0c","status":"unaffected"}]},{"vendor":"Trezor","product":"Safe 5","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"70c9b0c","versionType":"custom"},{"version":"70c9b0c","status":"unaffected"}]}],"references":[{"url":"https://github.com/trezor/trezor-firmware/commit/70c9b0c07748","name":"url","tags":["patch"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-65058","name":"url","tags":["vdb-entry"]},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-202-02.json","name":"url","tags":["third-party-advisory"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"cvssV4_0":{"version":"4.0","baseScore":5.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","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","userInteraction":"ACTIVE","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","subIntegrityImpact":"NONE","vulnIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","vulnConfidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-30T18:42:58.833211Z","id":"CVE-2026-65058","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-358","description":"CWE-358 Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"cisa-cg","orgId":"9119a7d8-5eab-497f-8521-727c672e3725","dateUpdated":"2026-07-21T20:13:00.560Z"},"credits":[{"value":"Oleh Konko, 1seal","lang":"en"}],"datePublic":"2026-03-19T00:00:00.000Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-30T17:29:27.625122Z","id":"CVE-2026-65058","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-30T17:29:43.291Z"}}]}}}