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vuln-cve/data/2026/23xxx/CVE-2026-23988.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-23988",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-01-19T18:49:20.657Z",
"datePublished": "2026-01-22T21:52:26.925Z",
"dateUpdated": "2026-01-23T20:13:25.446Z"
},
"containers": {
"cna": {
"title": "Rufus has Local Privilege Escalation via TOCTOU Race Condition in Fido Script Handling",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-367",
"lang": "en",
"description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/pbatard/rufus/security/advisories/GHSA-hcx5-hrhj-xhq9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pbatard/rufus/security/advisories/GHSA-hcx5-hrhj-xhq9"
},
{
"name": "https://github.com/pbatard/rufus/commit/460cc5768aa45be07941b9e4ebc9bee02d282873",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pbatard/rufus/commit/460cc5768aa45be07941b9e4ebc9bee02d282873"
},
{
"name": "https://github.com/pbatard/rufus/releases/tag/v4.12_BETA",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pbatard/rufus/releases/tag/v4.12_BETA"
}
],
"affected": [
{
"vendor": "pbatard",
"product": "rufus",
"versions": [
{
"version": "< 4.12_BETA",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-01-22T21:52:26.925Z"
},
"descriptions": [
{
"lang": "en",
"value": "Rufus is a utility that helps format and create bootable USB flash drives. Versions 4.11 and below contain a race condition (TOCTOU) in src/net.c during the creation, validation, and execution of the Fido PowerShell script. Since Rufus runs with elevated privileges (Administrator) but writes the script to the %TEMP% directory (writeable by standard users) without locking the file, a local attacker can replace the legitimate script with a malicious one between the file write operation and the execution step. This allows arbitrary code execution with Administrator privileges. This issue has been fixed in version 4.12_BETA."
}
],
"source": {
"advisory": "GHSA-hcx5-hrhj-xhq9",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-01-23T20:13:16.085068Z",
"id": "CVE-2026-23988",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-23T20:13:25.446Z"
}
}
]
}
}