Busybox: Security Vulnerabilities
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 Score
7.5
EPSS Score
0.003
Published
2026-07-15
A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-07-15
A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-07-15
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.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-07-15
BusyBox wget thru 1.3.7 accepted raw CR (0x0D)/LF (0x0A) and other C0 control bytes in the HTTP request-target (path/query), allowing the request line to be split and attacker-controlled headers to be injected. To preserve the HTTP/1.1 request-line shape METHOD SP request-target SP HTTP/1.1, a raw space (0x20) in the request-target must also be rejected (clients should use %20).
CVSS Score
6.5
EPSS Score
0.003
Published
2025-11-10
In tar in BusyBox through 1.37.0, a TAR archive can have filenames hidden from a listing through the use of terminal escape sequences.
CVSS Score
3.2
EPSS Score
0.002
Published
2025-04-23
A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.
CVSS Score
5.5
EPSS Score
0.004
Published
2023-11-27
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
CVSS Score
5.5
EPSS Score
0.004
Published
2023-11-27
A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.
CVSS Score
5.5
EPSS Score
0.004
Published
2023-11-27
A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.
CVSS Score
5.5
EPSS Score
0.004
Published
2023-11-27
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