High
zephyr — security advisory
Buffer overflow in usb device class. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fm6v-8625-99jf
- Products
- zephyr
- Affected versions
- 3.1.2-1, 3.1.2-1.1, 3.1.2-1.1build1, 3.1.2-1build1, 3.1.2-1build2, 3.1.2-1build3, 3.1.2-4
- Fixed versions
- Not specified
- CVEs
- CVE-2021-3835
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:37 UTC · Revision 1
Source evidence
Buffer overflow in usb device class. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fm6v-8625-99jf
osv:UBUNTU-CVE-2021-3835
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
zephyr
Fixed versions: Not specified
Complete source record
{
"id": "1e44bda344adc6d0fb6453ab6d6ee6100a7afcf2a3b069d7d16f834d258ade69",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-3835",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-3835",
"summary": "Buffer overflow in usb device class. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fm6v-8625-99jf",
"evidence": "osv:UBUNTU-CVE-2021-3835",
"products": [
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
"name": {
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"affected_versions": [
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"evidence": "/affected/7/versions"
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{
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],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2021-3835",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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"events": [
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"package": {
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},
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"database_specific": {
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},
"ecosystem_specific": {
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},
{
"binary_name": "libzephyr4-krb5",
"binary_version": "3.1.2-1build2"
},
{
"binary_name": "zephyr-clients",
"binary_version": "3.1.2-1build2"
},
{
"binary_name": "zephyr-server",
"binary_version": "3.1.2-1build2"
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{
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{
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],
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},
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],
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},
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{
"binary_name": "libzephyr4",
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{
"binary_name": "libzephyr4-krb5",
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{
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{
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{
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]
}
}
],
"modified": "2026-10-17T12:57:13.821684252Z",
"provider": "osv",
"upstream": [
"CVE-2021-3835"
],
"references": [
"https://ubuntu.com/security/CVE-2021-3835",
"https://www.cve.org/CVERecord?id=CVE-2021-3835"
]
},
"related_cves": [
{
"value": "CVE-2021-3835",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 356969,
"published_at": "2022-02-07T22:15:00+00:00"
}