CVE-2026-38752

A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

CVSS v3 2.9 LOW

2.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.4 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://busybox.net/
https://lists.busybox.net/pipermail/busybox/2026-June/092351.html	Mailing List Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:busybox:busybox:2024-07-13:*:*:*:*:*:*:*

History

20 Jul 2026, 16:16

Type	Values Removed	Values Added
References	~~{'url': 'http://busybox.com', 'tags': ['Product'], 'source': 'cve@mitre.org'}~~	() https://busybox.net/ -

20 Jul 2026, 15:16

Type	Values Removed	Values Added
References	~~() https://lists.busybox.net/pipermail/busybox/2026-June/092351.html - Mailing List, Vendor Advisory, Patch~~	() https://lists.busybox.net/pipermail/busybox/2026-June/092351.html - Mailing List, Patch, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : 2.9
CWE		CWE-674

16 Jul 2026, 19:58

Type	Values Removed	Values Added
First Time		Busybox Busybox busybox
References	~~() http://busybox.com -~~	() http://busybox.com - Product
References	~~() https://lists.busybox.net/pipermail/busybox/2026-June/092351.html -~~	() https://lists.busybox.net/pipermail/busybox/2026-June/092351.html - Mailing List, Vendor Advisory, Patch
CPE		cpe:2.3:a:busybox:busybox:2024-07-13:::::::*

16 Jul 2026, 16:19

Type	Values Removed	Values Added
CWE		CWE-121
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

15 Jul 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 22:16

Updated : 2026-07-20 16:16

NVD link : CVE-2026-38752

Mitre link : CVE-2026-38752

CVE.ORG link : CVE-2026-38752

JSON object : View

Products Affected

busybox

busybox

CWE

CWE-674

Uncontrolled Recursion

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2026-38752", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-38752", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-16T15:21:33.843028Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.9, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.4}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "BusyBox", "product": "BusyBox", "versions": [{"status": "affected", "version": "1.00", "versionType": "custom", "lessThanOrEqual": "1.38.0"}], "defaultStatus": "unknown"}]}], "published": "2026-07-15T22:16:47.130", "references": [{"url": "https://busybox.net/", "source": "cve@mitre.org"}, {"url": "https://lists.busybox.net/pipermail/busybox/2026-June/092351.html", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-674"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script."}], "lastModified": "2026-07-20T16:16:58.590", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:busybox:busybox:2024-07-13:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C7C5046-7E95-4DE0-99D2-F06E6B720D72"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}