A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.

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History

Wed, 22 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
Title BusyBox 1.38.0 AWK Use‑After‑Free Leading to Denial of Service

Mon, 20 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
References

Mon, 20 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}


Fri, 17 Jul 2026 06:15:00 +0000

Type Values Removed Values Added
Title BusyBox 1.38.0 AWK Use‑After‑Free Leading to Denial of Service

Thu, 16 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Jul 2026 01:30:00 +0000

Type Values Removed Values Added
First Time appeared Busybox
Busybox busybox
Vendors & Products Busybox
Busybox busybox

Wed, 15 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Description A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-20T15:33:13.060Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38753

cve-icon Vulnrichment

Updated: 2026-07-16T15:23:05.600Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-22T07:45:16Z

Weaknesses