CVE-2020-6861

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Source

https://cve.org/CVERecord?id=CVE-2020-6861

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6861.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2020-6861

Published

2020-05-06T14:15:11.083Z

Modified

2026-07-08T19:45:18.670422Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

[none]

Details

A flawed protocol design in the Ledger Monero app before 1.5.1 for Ledger Nano and Ledger S devices allows a local attacker to extract the master spending key by sending crafted messages to this app selected on a PIN-entered Ledger connected to a host PC.

References

Affected packages

Git / github.com/ledgerhq/app-monero

Affected ranges

Type

GIT

Repo

https://github.com/ledgerhq/app-monero

Events

Introduced

Fixed

63e6831c8062da5c94b96ddca877b397464a582f

Database specific

{
    "cpe": "cpe:2.3:a:ledger:monero:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.5.1"
        }
    ]
}

Affected versions

1.*

1.0.0

1.1.0

1.1.1

1.1.2

1.1.3

1.2.0

1.2.1

1.2.2

1.3.0

1.3.1

1.4.0-alpha1

1.4.0-alpha2

1.4.1

1.4.2

1.5.0

Other

Beta1

Beta2

Beta3

Beta4

Beta5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6861.json"

vanir_signatures_modified

"2026-07-08T19:45:18Z"

vanir_signatures

[
    {
        "signature_version": "v1",
        "source": "https://github.com/ledgerhq/app-monero/commit/63e6831c8062da5c94b96ddca877b397464a582f",
        "id": "CVE-2020-6861-1d54e770",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "101741386905829353390738821569549687821",
                "229090205630727460719228199548747180290",
                "22077540944309426620964614272921675852",
                "285395983083939586261017318037235051181"
            ]
        },
        "target": {
            "file": "src/monero_open_tx.c"
        },
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/ledgerhq/app-monero/commit/63e6831c8062da5c94b96ddca877b397464a582f",
        "id": "CVE-2020-6861-26b7a063",
        "digest": {
            "length": 246.0,
            "function_hash": "113563531168246943257164532100527837457"
        },
        "target": {
            "function": "monero_apdu_open_tx",
            "file": "src/monero_open_tx.c"
        },
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/ledgerhq/app-monero/commit/63e6831c8062da5c94b96ddca877b397464a582f",
        "id": "CVE-2020-6861-67232e9b",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "45368085189849241846371384634707785861",
                "76074305106806271853893752226834569509",
                "336782104617801452773831128018564400872",
                "76446207293541156956980447980398319837",
                "126859190297950555234972935200095419835",
                "16471406417976635148268064813046687011"
            ]
        },
        "target": {
            "file": "src/monero_ux_nano.c"
        },
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/ledgerhq/app-monero/commit/63e6831c8062da5c94b96ddca877b397464a582f",
        "id": "CVE-2020-6861-bf4f7eb7",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "285884109718157205990155085200126671806",
                "76074305106806271853893752226834569509",
                "228578609159770551741535275556781084005",
                "159287416375869182679674429704463080556",
                "76446207293541156956980447980398319837",
                "17034398394533678339953578823210019125",
                "114072379502219694448221604967310847693"
            ]
        },
        "target": {
            "file": "src/monero_ux_nanos.c"
        },
        "deprecated": false,
        "signature_type": "Line"
    }
]