High
net: eswifi socket send payload length not bounded
Type: advisorySources: OSV
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow `eswifi->buf`, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-1679
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 18:38 UTC · Revision 1
Source evidence
net: eswifi socket send payload length not bounded
core-osv · Original sourcePublished 27 Mar 2026, 23:21 UTC
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow `eswifi->buf`, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
osv:CVE-2026-1679
Complete source record
{
"id": "790c4c443d3d249161ba276174b4a27739728c6b1f645d315ecb14caf50a8ebc",
"url": "https://osv.dev/vulnerability/CVE-2026-1679",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: eswifi socket send payload length not bounded",
"summary": "The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow `eswifi->buf`, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.",
"evidence": "osv:CVE-2026-1679",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-1679",
"aliases": [
"CVE-2026-1679",
"GHSA-qx3g-5g22-fq5w"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/zephyrproject-rtos/zephyr",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "684c9e8f32e4373a21098559f748f06915f950c9"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "*"
},
{
"fixed": "4.4.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
}
],
"versions": [
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"v4.4.0-rc2",
"v4.4.0-rc1",
"v4.3.0",
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"zephyr-v3.0.0",
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"zephyr-v2.4.0",
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"zephyr-v2.3.0",
"v2.3.0",
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"v2.3.0-rc1",
"zephyr-v2.1.0",
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"zephyr-v2.2.0",
"v2.2.0",
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"zephyr-v2.0.0",
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"v2.0.0-rc2",
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"zephyr-v1.14.0",
"v1.14.0",
"v1.14.0-rc3",
"v1.14.0-rc2",
"v1.14.0-rc1",
"zephyr-v1.13.0",
"v1.13.0",
"v1.13.0-rc3",
"v1.13.0-rc2",
"v1.13.0-rc1",
"zephyr-v1.12.0",
"v1.12.0",
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"zephyr-v1.11.0",
"v1.11.0",
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"zephyr-v1.10.0",
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"v1.10.0-rc2",
"v1.10.0-rc1",
"zephyr-v1.9.0",
"v1.9.0",
"v1.9.0-rc4",
"v1.9.0-rc3",
"v1.9.0-rc2",
"v1.9.0-rc1",
"v1.8.99",
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"v1.5.0-rc3",
"v1.5.0-rc2",
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"v1.5.0-rc0",
"zephyr-v1.4.0",
"v1.4.0",
"v1.4.0-rc3",
"v1.4.0-rc2",
"v1.4.0-rc1",
"zephyr-v1.3.0",
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"zephyr-v1.2.0",
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"zephyr-v1.1.0",
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"zephyr-v1.0.0",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1679.json"
}
}
],
"modified": "2026-10-28T02:30:22.601715184Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1679.json",
"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w",
"https://nvd.nist.gov/vuln/detail/CVE-2026-1679",
"https://github.com/zephyrproject-rtos/zephyr"
],
"provider_metadata": {
"cwe_ids": [
"CWE-120"
],
"cna_assigner": "zephyr",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1679.json"
}
},
"related_cves": [
{
"value": "CVE-2026-1679",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 488661,
"published_at": "2026-03-27T23:21:18.399+00:00"
}