CVE-2026-23988

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Source
https://cve.org/CVERecord?id=CVE-2026-23988
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23988.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23988
Aliases
  • GHSA-hcx5-hrhj-xhq9
Published
2026-01-22T21:52:26.925Z
Modified
2026-03-13T04:07:00.496418Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Rufus has Local Privilege Escalation via TOCTOU Race Condition in Fido Script Handling
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-367"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23988.json"
}
References

Affected packages

Git / github.com/pbatard/rufus

Affected ranges

Type
GIT
Repo
https://github.com/pbatard/rufus
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
cac828621acd8b6e446f2e256ecd6ae90fc103a3
Fixed
460cc5768aa45be07941b9e4ebc9bee02d282873
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.12"
        }
    ]
}

Affected versions

v1.*
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.4.0
v1.4.1
v1.4.10
v1.4.11
v1.4.12
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.4.8
v1.4.9
v2.*
v2.0
v2.1
v2.10
v2.11
v2.12
v2.13
v2.14
v2.15
v2.16
v2.17
v2.18
v2.2
v2.3
v2.4
v2.5
v2.6
v2.7
v2.8
v2.9
v3.*
v3.0
v3.1
v3.10
v3.11
v3.12
v3.13
v3.14
v3.15
v3.16
v3.17
v3.18
v3.19
v3.2
v3.20
v3.21
v3.22
v3.3
v3.4
v3.5
v3.6
v3.7
v3.8
v3.9
v4.*
v4.0
v4.1
v4.10
v4.11
v4.12_BETA
v4.2
v4.3
v4.4
v4.5
v4.6
v4.7
v4.8
v4.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23988.json"