CVE-2026-63898
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix memory corruption with small endpoint The driver overrides the maximum transfer size for a specific device which only accepts 16 byte packets for its 32 byte bulk-out endpoint. Make sure to never increase the maximum transfer size to prevent slab corruption should a malicious device report a smaller endpoint max packet size than expected.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-07-19 16:17:07.370000
Last modified
2026-10-30 14:38:34.630000
View original CVE JSON
{
"id": "CVE-2026-63898",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-07-19T16:17:07.370",
"lastModified": "2026-10-30T14:38:34.630",
"vulnStatus": "Analyzed",
"cveTags": [],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: mct_u232: fix memory corruption with small endpoint\n\nThe driver overrides the maximum transfer size for a specific device\nwhich only accepts 16 byte packets for its 32 byte bulk-out endpoint.\n\nMake sure to never increase the maximum transfer size to prevent slab\ncorruption should a malicious device report a smaller endpoint max\npacket size than expected."
}
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