Sudo Project
Monthly
Privilege escalation in Sudo through 1.9.17p2 allows any local user holding a sudo rule to execute arbitrary commands when ptrace-based intercept mode is enabled. The intercept layer in exec_ptrace.c monitored only execve(2) system calls, leaving execveat(2) - and the fexecve libc wrapper built atop it - entirely uninspected, bypassing both policy enforcement and audit logging. No public exploit has been identified at time of analysis; the upstream fix is available as a confirmed commit to the sudo-project repository.
Local privilege escalation in Sudo through 1.9.17p2 (fixed in commit 3e474c2) arises because a failed setuid, setgid, or setgroups call during the privilege drop that precedes invoking the mailer is treated as non-fatal, allowing the mailer to run with retained elevated privileges. Local users on systems where Sudo is configured to send mail can leverage this to gain root, with total technical impact per CISA SSVC. EPSS is 0.00% and there is no public exploit identified at time of analysis, consistent with SSVC marking exploitation as none.
Sudo before 1.9.17p1 contains a local root escalation vulnerability (CVE-2025-32463, CVSS 9.3) through the --chroot option, which loads /etc/nsswitch.conf from the user-controlled chroot directory instead of the host system. KEV-listed with EPSS 26.5% and public PoC, this vulnerability allows any user with sudo --chroot access to achieve root privileges by placing a malicious nsswitch configuration and library in their chroot.
Incorrect host matching in Sudo before 1.9.17p1 allows local attackers to execute commands on unintended machines when the sudoers file lists a specific host that is neither the current host nor ALL. This flaw (CWE-863) enables privilege escalation across system boundaries with a CVSS 8.8 (high) and EPSS exploitation probability of 17.4%, and publicly available exploit code increases real-world risk.
A flaw was found in sudo in the handling of ipa_hostname, where ipa_hostname from /etc/sssd/sssd.conf was not propagated in sudo. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Improper Privilege Management vulnerability could allow attackers to escalate privileges to gain unauthorized elevated access.
Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is based on not equaling an error value (instead of equaling. Rated high severity (CVSS 7.0). Public exploit code available.
Sudo before 1.9.13 does not escape control characters in sudoreplay output. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Sudo before 1.9.13 does not escape control characters in log messages. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Sudo before 1.9.13p2 has a double free in the per-command chroot feature. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled. Rated low severity (CVSS 2.5). Public exploit code available and no vendor patch available.
Sudo through 1.8.29 allows local users to escalate to root if they have write access to file descriptor 3 of the sudo process. Rated high severity (CVSS 7.0). Public exploit code available and no vendor patch available.
In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
The SHA-2 digest support in the sudoers plugin in sudo after 1.8.7 allows local users with write permissions to parts of the called command to replace them before it is executed. Rated high severity (CVSS 7.0).
Todd Miller's sudo version 1.8.20p1 and earlier is vulnerable to an input validation (embedded newlines) in the get_process_ttyname() function resulting in information disclosure and command. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation (embedded spaces) in the get_process_ttyname() function resulting in information disclosure and command execution. Rated medium severity (CVSS 6.4). Public exploit code available and EPSS exploitation probability 19.9%.
sudo before 1.8.12 does not ensure that the TZ environment variable is associated with a zoneinfo file, which allows local users to open arbitrary files for read access (but not view file contents). Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
sudoedit in Sudo before 1.8.15 allows local users to gain privileges via a symlink attack on a file whose full path is defined using multiple wildcards in /etc/sudoers, as demonstrated by. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Privilege escalation in Sudo through 1.9.17p2 allows any local user holding a sudo rule to execute arbitrary commands when ptrace-based intercept mode is enabled. The intercept layer in exec_ptrace.c monitored only execve(2) system calls, leaving execveat(2) - and the fexecve libc wrapper built atop it - entirely uninspected, bypassing both policy enforcement and audit logging. No public exploit has been identified at time of analysis; the upstream fix is available as a confirmed commit to the sudo-project repository.
Local privilege escalation in Sudo through 1.9.17p2 (fixed in commit 3e474c2) arises because a failed setuid, setgid, or setgroups call during the privilege drop that precedes invoking the mailer is treated as non-fatal, allowing the mailer to run with retained elevated privileges. Local users on systems where Sudo is configured to send mail can leverage this to gain root, with total technical impact per CISA SSVC. EPSS is 0.00% and there is no public exploit identified at time of analysis, consistent with SSVC marking exploitation as none.
Sudo before 1.9.17p1 contains a local root escalation vulnerability (CVE-2025-32463, CVSS 9.3) through the --chroot option, which loads /etc/nsswitch.conf from the user-controlled chroot directory instead of the host system. KEV-listed with EPSS 26.5% and public PoC, this vulnerability allows any user with sudo --chroot access to achieve root privileges by placing a malicious nsswitch configuration and library in their chroot.
Incorrect host matching in Sudo before 1.9.17p1 allows local attackers to execute commands on unintended machines when the sudoers file lists a specific host that is neither the current host nor ALL. This flaw (CWE-863) enables privilege escalation across system boundaries with a CVSS 8.8 (high) and EPSS exploitation probability of 17.4%, and publicly available exploit code increases real-world risk.
A flaw was found in sudo in the handling of ipa_hostname, where ipa_hostname from /etc/sssd/sssd.conf was not propagated in sudo. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Improper Privilege Management vulnerability could allow attackers to escalate privileges to gain unauthorized elevated access.
Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is based on not equaling an error value (instead of equaling. Rated high severity (CVSS 7.0). Public exploit code available.
Sudo before 1.9.13 does not escape control characters in sudoreplay output. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Sudo before 1.9.13 does not escape control characters in log messages. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Sudo before 1.9.13p2 has a double free in the per-command chroot feature. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled. Rated low severity (CVSS 2.5). Public exploit code available and no vendor patch available.
Sudo through 1.8.29 allows local users to escalate to root if they have write access to file descriptor 3 of the sudo process. Rated high severity (CVSS 7.0). Public exploit code available and no vendor patch available.
In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
The SHA-2 digest support in the sudoers plugin in sudo after 1.8.7 allows local users with write permissions to parts of the called command to replace them before it is executed. Rated high severity (CVSS 7.0).
Todd Miller's sudo version 1.8.20p1 and earlier is vulnerable to an input validation (embedded newlines) in the get_process_ttyname() function resulting in information disclosure and command. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.
Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation (embedded spaces) in the get_process_ttyname() function resulting in information disclosure and command execution. Rated medium severity (CVSS 6.4). Public exploit code available and EPSS exploitation probability 19.9%.
sudo before 1.8.12 does not ensure that the TZ environment variable is associated with a zoneinfo file, which allows local users to open arbitrary files for read access (but not view file contents). Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
sudoedit in Sudo before 1.8.15 allows local users to gain privileges via a symlink attack on a file whose full path is defined using multiple wildcards in /etc/sudoers, as demonstrated by. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.