CVE-2026-54000

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Source
https://cve.org/CVERecord?id=CVE-2026-54000
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54000.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54000
Aliases
  • GHSA-4r78-6hg6-33gg
Published
2026-07-10T14:51:35Z
Modified
2026-08-12T16:41:10Z
Severity
  • 7.0 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
osquery: Heap buffer overflow in `getProcessCurrentDirectory()` via `processes` table (Windows)
Details

osquery is a SQL powered operating system instrumentation, monitoring, and analytics framework. Prior to 5.23.1, on Windows, a local unprivileged attacker can cause a heap buffer out-of-bounds write if there is a query of the processes table targeting a maliciously crafted process, due to unchecked PEB string lengths in process command-line and current-directory reads. If exploited successfully, this could allow a potential local privilege escalation from standard user to SYSTEM. This issue is fixed in version 5.23.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54000.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "5.23.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/osquery/osquery

Affected ranges

Type
GIT
Repo
https://github.com/osquery/osquery
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3d457c412eb0c986b0c37d8903edae8bc9f9e246
Database specific
Show details 
{
    "source": "REFERENCES"
}

Affected versions

0.*
0.0.2
1.*
1.0.2
1.0.3
1.0.4
1.0.5
1.1.0
1.2.0
1.2.1
1.2.2
1.3.0
1.3.1
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.5.0
1.5.1
1.5.2
1.5.3
1.6.0
1.6.1
1.6.2
1.6.3
1.6.4
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
2.*
2.0.0
2.1.0
2.1.1
2.1.2
2.10.0
2.10.1
2.10.2
2.10.3
2.10.4
2.11.0
2.11.1
2.11.2
2.2.0
2.2.1
2.2.2
2.2.3
2.3.0
2.3.1
2.3.2
2.3.3
2.3.4
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.5.0
2.5.1
2.5.2
2.5.3
2.6.0
2.6.1
2.7.0
2.8.0
2.8.1
2.9.0
2.9.1
2.9.2
3.*
3.0.0
3.1.0
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.3.0
3.3.1
3.3.2
4.*
4.0.0
4.0.1
4.0.2
4.1.0
4.1.1
4.1.2
4.2.0
4.3.0
4.4.0
4.5.0
4.5.1
4.6.0
4.7.0
4.8.0
4.9.0
5.*
5.0.0
5.0.1
5.1.0
5.10.0
5.10.1
5.10.2
5.11.0
5.12.0
5.12.1
5.13.0
5.13.1
5.14.0
5.14.1
5.15.0
5.16.0
5.17.0
5.18.0
5.19.0
5.2.0
5.2.1
5.2.2
5.20.0
5.21.0
5.22.0
5.22.1
5.23.0
5.3.0
5.4.0
5.5.0
5.5.1
5.6.0
5.7.0
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
v0.*
v0.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54000.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "228852708779820532786320834819503120482",
            "length": 636
        },
        "id": "CVE-2026-54000-87e361a3",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246",
        "target": {
            "file": "osquery/tables/system/windows/processes.cpp",
            "function": "getProcessCommandLineLegacy"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "306587940601306112580030435210540487004",
            "length": 742
        },
        "id": "CVE-2026-54000-f7669778",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246",
        "target": {
            "file": "osquery/tables/system/windows/processes.cpp",
            "function": "getProcessPathInfo"
        }
    },
    {
        "deprecated": false,
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-54000-f7c21e83",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246",
        "target": {
            "file": "osquery/tables/system/windows/processes.cpp"
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    },
    {
        "deprecated": false,
        "digest": {
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        },
        "id": "CVE-2026-54000-fcbbc7f1",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246",
        "target": {
            "file": "osquery/tables/system/windows/processes.cpp",
            "function": "getProcessCurrentDirectory"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T16:41:10Z"