CVE-2025-68217 (GCVE-0-2025-68217)
Vulnerability from cvelistv5 – Published: 2025-12-16 13:57 – Updated: 2026-05-11 21:48
VLAI
EPSS
VEX
Title
Input: pegasus-notetaker - fix potential out-of-bounds access
Summary
In the Linux kernel, the following vulnerability has been resolved:
Input: pegasus-notetaker - fix potential out-of-bounds access
In the pegasus_notetaker driver, the pegasus_probe() function allocates
the URB transfer buffer using the wMaxPacketSize value from
the endpoint descriptor. An attacker can use a malicious USB descriptor
to force the allocation of a very small buffer.
Subsequently, if the device sends an interrupt packet with a specific
pattern (e.g., where the first byte is 0x80 or 0x42),
the pegasus_parse_packet() function parses the packet without checking
the allocated buffer size. This leads to an out-of-bounds memory access.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1afca2b66aac7ac262d3511c68725e9e7053b40f , < c4e746651bd74c38f581e1cf31651119a94de8cd
(git)
Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 36bc92b838ff72f62f2c17751a9013b29ead2513 (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 015b719962696b793997e8deefac019f816aca77 (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 084264e10e2ae8938a54355123ad977eb9df56d6 (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < d344ea1baf1946c90f0cd6f9daeb5f3e0a0ca479 (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 9ab67eff6d654e34ba6da07c64761aa87c2a3c26 (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 763c3f4d2394a697d14af1335d3bb42f05c9409f (git) Affected: 1afca2b66aac7ac262d3511c68725e9e7053b40f , < 69aeb507312306f73495598a055293fa749d454e (git) |
guessed | |
| Linux | Linux |
Affected:
4.8
Unaffected: 0 , < 4.8 (semver) Unaffected: 5.4.302 , ≤ 5.4.* (semver) Unaffected: 5.10.247 , ≤ 5.10.* (semver) Unaffected: 5.15.197 , ≤ 5.15.* (semver) Unaffected: 6.1.159 , ≤ 6.1.* (semver) Unaffected: 6.6.118 , ≤ 6.6.* (semver) Unaffected: 6.12.60 , ≤ 6.12.* (semver) Unaffected: 6.17.10 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
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"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/input/tablet/pegasus_notetaker.c"
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"versionType": "git"
},
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"status": "affected",
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},
{
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"drivers/input/tablet/pegasus_notetaker.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.302",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.247",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.197",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.159",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.118",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.60",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.302",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.247",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.197",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.159",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.118",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.60",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.10",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18",
"versionStartIncluding": "4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: pegasus-notetaker - fix potential out-of-bounds access\n\nIn the pegasus_notetaker driver, the pegasus_probe() function allocates\nthe URB transfer buffer using the wMaxPacketSize value from\nthe endpoint descriptor. An attacker can use a malicious USB descriptor\nto force the allocation of a very small buffer.\n\nSubsequently, if the device sends an interrupt packet with a specific\npattern (e.g., where the first byte is 0x80 or 0x42),\nthe pegasus_parse_packet() function parses the packet without checking\nthe allocated buffer size. This leads to an out-of-bounds memory access."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:48:59.173Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/c4e746651bd74c38f581e1cf31651119a94de8cd"
},
{
"url": "https://git.kernel.org/stable/c/36bc92b838ff72f62f2c17751a9013b29ead2513"
},
{
"url": "https://git.kernel.org/stable/c/015b719962696b793997e8deefac019f816aca77"
},
{
"url": "https://git.kernel.org/stable/c/084264e10e2ae8938a54355123ad977eb9df56d6"
},
{
"url": "https://git.kernel.org/stable/c/d344ea1baf1946c90f0cd6f9daeb5f3e0a0ca479"
},
{
"url": "https://git.kernel.org/stable/c/9ab67eff6d654e34ba6da07c64761aa87c2a3c26"
},
{
"url": "https://git.kernel.org/stable/c/763c3f4d2394a697d14af1335d3bb42f05c9409f"
},
{
"url": "https://git.kernel.org/stable/c/69aeb507312306f73495598a055293fa749d454e"
}
],
"title": "Input: pegasus-notetaker - fix potential out-of-bounds access",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68217",
"datePublished": "2025-12-16T13:57:12.011Z",
"dateReserved": "2025-12-16T13:41:40.256Z",
"dateUpdated": "2026-05-11T21:48:59.173Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-68217",
"date": "2026-11-01",
"epss": "0.00219",
"percentile": "0.12452"
},
"microsoft_vex": {
"current_release_date": "2026-01-13T01:38:00.000Z",
"cve": "CVE-2025-68217",
"id": "msrc_CVE-2025-68217",
"initial_release_date": "2025-12-02T00:00:00.000Z",
"product_status:known_not_affected": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "Input: pegasus-notetaker - fix potential out-of-bounds access",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-68217.json",
"version": "3"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/input/tablet/pegasus_notetaker.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "1afca2b66aac7ac262d3511c68725e9e7053b40f",
"versionType": "git"
},
{
"lessThan": "36bc92b838ff72f62f2c17751a9013b29ead2513",
"status": "affected",
"version": "1afca2b66aac7ac262d3511c68725e9e7053b40f",
"versionType": "git"
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},
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"versionType": "git"
},
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"versionType": "git"
},
{
"lessThan": "69aeb507312306f73495598a055293fa749d454e",
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]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
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"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.302",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.247",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.197",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.159",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.118",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.60",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"version": "6.17.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: pegasus-notetaker - fix potential out-of-bounds access\n\nIn the pegasus_notetaker driver, the pegasus_probe() function allocates\nthe URB transfer buffer using the wMaxPacketSize value from\nthe endpoint descriptor. An attacker can use a malicious USB descriptor\nto force the allocation of a very small buffer.\n\nSubsequently, if the device sends an interrupt packet with a specific\npattern (e.g., where the first byte is 0x80 or 0x42),\nthe pegasus_parse_packet() function parses the packet without checking\nthe allocated buffer size. This leads to an out-of-bounds memory access."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nEntrada: pegasus-notetaker - corrige un posible acceso fuera de l\u00edmites\n\nEn el controlador pegasus_notetaker, la funci\u00f3n pegasus_probe() asigna el b\u00fafer de transferencia URB utilizando el valor wMaxPacketSize del descriptor de punto final. Un atacante puede usar un descriptor USB malicioso para forzar la asignaci\u00f3n de un b\u00fafer muy peque\u00f1o.\n\nPosteriormente, si el dispositivo env\u00eda un paquete de interrupci\u00f3n con un patr\u00f3n espec\u00edfico (por ejemplo, donde el primer byte es 0x80 o 0x42), la funci\u00f3n pegasus_parse_packet() analiza el paquete sin verificar el tama\u00f1o del b\u00fafer asignado. Esto conduce a un acceso a memoria fuera de l\u00edmites."
}
],
"id": "CVE-2025-68217",
"lastModified": "2026-10-14T13:10:00.187",
"metrics": {},
"published": "2025-12-16T14:15:54.763",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/015b719962696b793997e8deefac019f816aca77"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/084264e10e2ae8938a54355123ad977eb9df56d6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/36bc92b838ff72f62f2c17751a9013b29ead2513"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/69aeb507312306f73495598a055293fa749d454e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/763c3f4d2394a697d14af1335d3bb42f05c9409f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9ab67eff6d654e34ba6da07c64761aa87c2a3c26"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c4e746651bd74c38f581e1cf31651119a94de8cd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d344ea1baf1946c90f0cd6f9daeb5f3e0a0ca479"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:20:26+00:00",
"cve": "CVE-2025-68217",
"id": "CVE-2025-68217",
"initial_release_date": "2025-12-16T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Input: pegasus-notetaker - fix potential out-of-bounds access",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68217.json",
"version": "3"
}
}
}
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