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CVE-2026-38753

medium CVSS 4.9 EPSS 0.1%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2026-38753 applies to, and the release that fixes it where the sources name one.

busybox 1.32.0

At a glance

Severity
Medium
CVSS base score
4.9 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.1% probability of exploitation in the next 30 days, higher than 3% of scored vulnerabilities
Weakness
CWE-416
Published
2026-07-15
NVD CVE.org

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