Gnu Inetutils vulnerabilities

CVE-2026-24061 [CRITICAL] CWE-88 CVE-2026-24061: telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for t telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.

CVE-2011-4862 [CRITICAL] CWE-120 CVE-2011-4862: Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.

CVE-2026-32746 [CRITICAL] CWE-120 CVE-2026-32746: telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Ch telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Characters) suboption handler because add_slc does not check whether the buffer is full.

CVE-2020-10188 [CRITICAL] CVE-2020-10188: utility utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

CVE-2014-3634 [HIGH] CVE-2014-3634: rsyslog before 7 rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute arbitrary code, or have other unspecified impact via a crafted priority (PRI) value that triggers an out-of-bounds array access.

CVE-2026-28372 [HIGH] CWE-829 CVE-2026-28372: telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing sy telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the login(1) implementation of util-linux in release 2.40. This is related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an unprivileged local user to create a login.noauth

CVE-2019-0053 [HIGH] inetutils vulnerabilities inetutils vulnerabilities Matthew Hickey discovered that Inetutils did not correctly handle certain escape characters. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-0053) It was discovered that Inetutils did not correctly handle certain memory operations. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-10188) It was discovered that Inetut

CVE-2023-40303 [HIGH] CWE-252 CVE-2023-40303: GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.

CVE-2022-39028 [HIGH] CWE-476 CVE-2022-39028: telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL p telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval,

CVE-2021-40491 [MEDIUM] CVE-2021-40491: The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV respons The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.

CVE-2026-32772 [MEDIUM] CWE-669 CVE-2026-32772: telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clie telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients via NEW_ENVIRON SEND USERVAR.

CVE-2010-2529 [MEDIUM] CVE-2010-2529: Unspecified vulnerability in ping Unspecified vulnerability in ping.c in iputils 20020927, 20070202, 20071127, and 20100214 on Mandriva Linux allows remote attackers to cause a denial of service (hang) via a crafted echo response.