Linux Distros Unpatched Vulnerability : CVE-2026-56740

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number...

Linux Distros Unpatched Vulnerability : CVE-2026-56741

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper...

DEBIAN-CVE-2026-56741

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

DEBIAN-CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option, and TelnetIO.readNEVariables in TelnetIO.java:1127-1180...

CVE-2026-56740

JLine3 Telnet server remote-telnet module in JLine prior to versions 3.30.14, 4.0.16, and 4.2.1 does not limit the number of environment variables injected via Telnet NEW-ENVIRON. TelnetIO.readNEVariables() stores each variable pair in a HashMap within ConnectionData (lines 1127-1180), allowing a...

CVE-2026-56741 JLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry

JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS in TelnetIO.java:856-879 reads client-supplied...

JLine3 Telnet server: Unauthenticated Remote Memory Exhaustion via Unbounded Telnet NEW-ENVIRON Variables

Summary The JLine3 Telnet server remote-telnet module does not limit the number of environment variables a client may inject via the Telnet NEW-ENVIRON option. An unauthenticated attacker can flood the server with a large number of unique variable pairs before sending the terminating IAC SE byte,...

GHSA-2R2C-CX56-8933 JLine3 Telnet server: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry

Summary The JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS Negotiate About Window Size option. An unauthenticated remote attacker can send a NAWS subnegotiation advertising a 65535×65535 terminal and repeatedly alternate...

PT-2026-60884

Name of the Vulnerable Software and Affected Versions JLine versions prior to 3.30.14 JLine versions prior to 4.0.16 JLine versions prior to 4.2.1 Description The JLine3 Telnet server remote-telnet module fails to limit the number of environment variables a client can inject using the Telnet...

Exploit for Use of Externally-Controlled Format String in Ghs Integrity_Rtos

Green Hills INTEGRITY RTOS F-16 Exploit - CVE-2019-7711 Ful...

CVE-2021-27177

An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to bypass authentication by sending the decoded value of the GgpoZWxwCmxpc3QKd2hvCg== string to the telnet server...

Exploit for Argument Injection in Gnu Inetutils

CVE-2026-24061: telnetd Authentication Bypass Vulnerability C...

gnu_telnetd_auth_bypass

GNU telnetd Authentication Bypass Vulnerability PoC Vulnerabili...

MiracleLinux 7 : telnet-0.17-65.el7 (AXSA:2020-4688:01)

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2020-4688:01 advisory. telnet-server: no bounds checks in nextitem function allows to remotely execute arbitrary code CVE-2020-10188 Tenable has extracted the preceding description...

MiracleLinux 4 : krb5-appl-1.0.1-10.AXS4 (AXSA:2020-4695:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2020-4695:01 advisory. telnet-server: no bounds checks in nextitem function allows to remotely execute arbitrary code CVE-2020-10188 Tenable has extracted the preceding description...

MiracleLinux 4 : telnet-0.17-49.AXS4 (AXSA:2020-4689:02)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2020-4689:02 advisory. telnet-server: no bounds checks in nextitem function allows to remotely execute arbitrary code CVE-2020-10188 Tenable has extracted the preceding description...

MiracleLinux 8 : telnet-0.17-73.el8.1 (AXSA:2020-158:03)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2020-158:03 advisory. telnet-server: no bounds checks in nextitem function allows to remotely execute arbitrary code CVE-2020-10188 Tenable has extracted the preceding description...

CVE-2022-38394

Use of hard-coded credentials for the telnet server of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7 allows a remote unauthenticated attacker to execute an arbitrary OS command...