CVE-2026-74460 (GCVE-0-2026-74460)
Vulnerability from cvelistv5
Published
2026-08-15 12:27
Modified
2026-08-19 16:36
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: ems_usb: validate CPC message lengths
ems_usb_read_bulk_callback() walks CPC messages packed in one USB
receive buffer.
Check that each declared message fits in the URB payload. Also require the
type-specific payload to cover the fields used by the CAN, state, error and
overrun handlers.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 Version: 702171adeed3607ee9603ec30ce081411e36ae42 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/can/usb/ems_usb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "db5655287d78f00daf98888a520bb8da4d30126d",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "ce8125566b1d0b0f16449407e014addf451804ea",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "0b9090717c7e2184e2c427bbcc752f295116ac1d",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "0b23144c59c126beb4a7761a85a194ae0fe668a5",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "df3ac2a672a5284441f120d486acabdd6740fc2a",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
},
{
"lessThan": "02925f51377f2a42a6724f00549167499c9302e5",
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/can/usb/ems_usb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.32"
},
{
"lessThan": "2.6.32",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.216",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.183",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.151",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.103",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.44",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.8",
"versionStartIncluding": "2.6.32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2",
"versionStartIncluding": "2.6.32",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: validate CPC message lengths\n\nems_usb_read_bulk_callback() walks CPC messages packed in one USB\nreceive buffer.\n\nCheck that each declared message fits in the URB payload. Also require the\ntype-specific payload to cover the fields used by the CAN, state, error and\noverrun handlers."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:36:57.996Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6"
},
{
"url": "https://git.kernel.org/stable/c/db5655287d78f00daf98888a520bb8da4d30126d"
},
{
"url": "https://git.kernel.org/stable/c/ce8125566b1d0b0f16449407e014addf451804ea"
},
{
"url": "https://git.kernel.org/stable/c/0b9090717c7e2184e2c427bbcc752f295116ac1d"
},
{
"url": "https://git.kernel.org/stable/c/0b23144c59c126beb4a7761a85a194ae0fe668a5"
},
{
"url": "https://git.kernel.org/stable/c/df3ac2a672a5284441f120d486acabdd6740fc2a"
},
{
"url": "https://git.kernel.org/stable/c/02925f51377f2a42a6724f00549167499c9302e5"
}
],
"title": "can: ems_usb: validate CPC message lengths",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-74460",
"datePublished": "2026-08-15T12:27:01.274Z",
"dateReserved": "2026-08-15T05:44:03.901Z",
"dateUpdated": "2026-08-19T16:36:57.996Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…