53 results · Feed
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Medium 6.1
BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability
BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that…
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Low 3.3
Busybox: busybox: dpkg stale field_start pointer causes out-of-bounds read and status file corruption
A flaw was found in BusyBox dpkg. The write_status_file() function does not reset a field cursor between package stanzas. When two packages are removed in a single invocation and the first stanza is larger than the second, the second package stanza can be dro…
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High 7.2
Busybox: busybox: http request smuggling via pipelined requests in httpd reverse proxy
A flaw was found in BusyBox httpd's reverse proxy feature. When the proxy is configured to forward requests matching a URL prefix to a backend server, only the first HTTP request on a TCP connection has its path rewritten. An attacker can send a pipelined sec…
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High 7.8
Busybox: busybox: dpkg-deb extraction-root escape via per-ar-member deferred symlink flush
A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two d…
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Low 3.7
Busybox: busybox: httpd user existence oracle in non-default shadow-disabled builds
A flaw was found in BusyBox's httpd web server. When configured with system password authentication, a user existence oracle may exist in certain build configurations. An attacker could distinguish existing from non-existing usernames by observing authenticat…
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Medium 5.5
Busybox: busybox: non-root mount option filter bypass allows clearing fstab security restrictions
A flaw was found in BusyBox's mount utility. A non-root user can bypass mount security restrictions set in /etc/fstab by specifying clearing-mask options on the command line. These options pass the non-root flag filter and are merged with fstab options as str…
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Medium 6.5
Busybox: busybox: udhcpc integer underflow in dhcp packet length calculation causes denial of service
A flaw was found in BusyBox's udhcpc DHCP client. When processing raw DHCP packets, the client replaces the validated packet length with an attacker-controlled value from the IP header without re-validating the minimum size. This leads to an integer underflow…
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Medium 6.3
Busybox: busybox: tar extraction-root escape via deferred symlink/hardlink creation bypasses cve-2026-26158 fix
A flaw was found in busybox. The tar applet's deferred link-creation handling for symlink and hardlink entries with unsafe-looking targets does not validate that the resolved destination remains inside the extraction directory once the deferred link is create…
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Medium 5.3
Busybox: busybox: tls ssl_server reads one byte out of bounds when parsing truncated clienthello
BusyBox TLS get_client_hello() reads past the end of the input buffer when parsing a truncated ClientHello message.
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Medium 6.7
Busybox: busybox: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint
BusyBox passwd/group tokenize() references a stale endpoint pointer after trimming, causing an out-of-bounds write of heap pointers.
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Medium 6.5
Busybox: busybox: httpd misidentifies yescrypt password hashes as plaintext, inverting authentication
BusyBox httpd treats yescrypt ($y$) password hashes as plaintext during Basic Authentication, inverting the authentication check.
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Medium 6.1
Busybox: busybox: dpkg read_package_field() steps past nul terminator, causing out-of-bounds read on malformed .deb packages
BusyBox dpkg read_package_field() steps past a NUL terminator on malformed .deb packages, causing an out-of-bounds heap read.
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Medium 5.3
Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths
BusyBox httpd IP deny rules with invalid CIDR prefix lengths fail open, leaving a parsed IP with a zeroed mask so the rule matches no clients.
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High 7.3
Busybox: busybox: romfs volume id parsing performs unbounded memcpy into fixed-size label buffer, causing heap overflow
BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.
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High 7.5
Busybox: busybox: tls montgomery reduction allocates bytes instead of digits, causing a pre-auth heap buffer overflow
A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.
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Low 3.3
BusyBox FEATURE_WGET_TIMEOUT wget.c null pointer dereference
A vulnerability has been found in BusyBox up to 1.30.1. This vulnerability affects unknown code of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. Such manipulation of the argument -T leads to null pointer dereference. Local access i…
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Medium 5.1
A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Ser…
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Low 2.9
A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial…
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Low 2.9
A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Se…
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Medium 4.9
A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a Denial of Ser…
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High 8.1
BusyBox DHCPv6 Client Heap Buffer Overflow via DNS_SERVERS
BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv…
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High 7.0CVE-2026-26157 Public exploit
Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization
A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead t…
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High 7.0
Busybox: busybox: arbitrary file modification and privilege escalation via unvalidated tar archive entries
A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevat…
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Medium 6.5CVE-2025-60876 Public exploit
BusyBox wget thru 1.3.7 accepted raw CR (0x0D)/LF (0x0A) and other C0 control bytes in the HTTP request-target (path/qu…
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Low 2.5
In netstat in BusyBox through 1.37.0, local users can launch of network application with an argv[0] containing an ANSI …
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Low 3.2
In tar in BusyBox through 1.37.0, a TAR archive can have filenames hidden from a listing through the use of terminal es…
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Unscored —
A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.
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Unscored —
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar functi…
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Medium 5.5
A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk patt…
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Unscored —
A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.
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Unscored —
An issue in the CPIO command of Busybox v1.33.2 allows attackers to execute a directory traversal.
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Unscored —
There is a stack overflow vulnerability in ash.c:6030 in busybox before 1.35. In the environment of Internet of Vehicle…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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Medium 5.3
An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…
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High 7.2
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a craft…