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2 vulnerabilities found for Safe 3 by Trezor
CVE-2026-65058 (GCVE-0-2026-65058)
Vulnerability from nvd – Published: 2026-07-21 20:13 – Updated: 2026-07-21 20:13
VLAI
EPSS
VEX
Title
Trezor Safe improper security check in on-device display
Summary
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.
Severity
5.3 (Medium)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/trezor/trezor-firmware/commit/… | patch |
| https://www.cve.org/CVERecord?id=CVE-2026-65058 | vdb-entry |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
Date Public
2026-03-19 00:00
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Safe 3",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
},
{
"defaultStatus": "unknown",
"product": "Safe 7",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
},
{
"defaultStatus": "unknown",
"product": "Safe 5",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Oleh Konko, 1seal"
}
],
"datePublic": "2026-03-19T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"cvssV4_0": {
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2026-65058",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-30T18:42:58.833211Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-358",
"description": "CWE-358 Improperly Implemented Security Check for Standard",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-21T20:13:00.560Z",
"orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"shortName": "cisa-cg"
},
"references": [
{
"name": "url",
"tags": [
"patch"
],
"url": "https://github.com/trezor/trezor-firmware/commit/70c9b0c07748"
},
{
"name": "url",
"tags": [
"vdb-entry"
],
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65058"
},
{
"name": "url",
"tags": [
"third-party-advisory"
],
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-202-02.json"
}
],
"title": "Trezor Safe improper security check in on-device display"
}
},
"cveMetadata": {
"assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"assignerShortName": "cisa-cg",
"cveId": "CVE-2026-65058",
"datePublished": "2026-07-21T20:13:00.560Z",
"dateReserved": "2026-07-21T14:35:48.323Z",
"dateUpdated": "2026-07-21T20:13:00.560Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-65058 (GCVE-0-2026-65058)
Vulnerability from cvelistv5 – Published: 2026-07-21 20:13 – Updated: 2026-07-21 20:13
VLAI
EPSS
VEX
Title
Trezor Safe improper security check in on-device display
Summary
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.
Severity
5.3 (Medium)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/trezor/trezor-firmware/commit/… | patch |
| https://www.cve.org/CVERecord?id=CVE-2026-65058 | vdb-entry |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
Date Public
2026-03-19 00:00
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Safe 3",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
},
{
"defaultStatus": "unknown",
"product": "Safe 7",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
},
{
"defaultStatus": "unknown",
"product": "Safe 5",
"vendor": "Trezor",
"versions": [
{
"lessThan": "70c9b0c",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "70c9b0c"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Oleh Konko, 1seal"
}
],
"datePublic": "2026-03-19T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"cvssV4_0": {
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2026-65058",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-30T18:42:58.833211Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-358",
"description": "CWE-358 Improperly Implemented Security Check for Standard",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-21T20:13:00.560Z",
"orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"shortName": "cisa-cg"
},
"references": [
{
"name": "url",
"tags": [
"patch"
],
"url": "https://github.com/trezor/trezor-firmware/commit/70c9b0c07748"
},
{
"name": "url",
"tags": [
"vdb-entry"
],
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65058"
},
{
"name": "url",
"tags": [
"third-party-advisory"
],
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-202-02.json"
}
],
"title": "Trezor Safe improper security check in on-device display"
}
},
"cveMetadata": {
"assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"assignerShortName": "cisa-cg",
"cveId": "CVE-2026-65058",
"datePublished": "2026-07-21T20:13:00.560Z",
"dateReserved": "2026-07-21T14:35:48.323Z",
"dateUpdated": "2026-07-21T20:13:00.560Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}