Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-38753

Quick assessment

Affected
BusyBox BusyBox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

busybox是busybox团队开源的一套嵌入式命令行工具箱。 BusyBox v1.38.0版本存在安全漏洞，该漏洞源于editors/awk.c的awk_sub()函数中存在释放后重用，可能导致攻击者通过提供特制AWK脚本造成拒绝服务。

CVSS 4.9 · Medium EPSS 0.25% · P14

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
BusyBox BusyBox 1.00≤ 1.38.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-38753

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
BusyBox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
busybox是busybox团队开源的一套嵌入式命令行工具箱。 BusyBox v1.38.0版本存在安全漏洞，该漏洞源于editors/awk.c的awk_sub()函数中存在释放后重用，可能导致攻击者通过提供特制AWK脚本造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
BusyBox BusyBox 1.00 ~ 1.38.0 -

II. Public POCs for CVE-2026-38753

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-38753

请登录查看更多情报信息。

Mailing List Discussions for CVE-2026-38753 (1)

Other References for CVE-2026-38753 (1)

Same Patch Batch · BusyBox · 2026-07-15 · 4 CVEs total

CVE-2026-38754 5.1 MEDIUM BusyBox 安全漏洞
CVE-2026-38752 2.9 LOW BusyBox 安全漏洞
CVE-2026-38755 2.9 LOW BusyBox 安全漏洞

IV. Related Vulnerabilities

Same product: BusyBox
Same vendor: BusyBox
Same weakness: CWE-416

V. Comments for CVE-2026-38753

No comments yet

Leave a comment