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Vulnerability record · CVE-2023-42366 · published 27 November 2023

CVE-2023-42366: Busybox out-of-bounds write vulnerability

Busybox · Busybox

A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.

5.5 CVSS 3.1 Medium EPSS 0.41% · top 66.5% CWE-787 · Out-of-bounds write
5.5CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
8 Oct 2026Last modified by NVD

Description

A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.busybox.net/show_bug.cgi?id=15874 ExploitIssue TrackingVendor Advisory
https://bugs.busybox.net/show_bug.cgi?id=15874 ExploitIssue TrackingVendor Advisory
https://security.netapp.com/advisory/ntap-20241206-0007/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-42366), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.