CVE-2026-42372 D-Link DIR-605L A1 Hardcoded Telnet Backdoor Credentials

D-Link DIR-605L Hardware Revision A1 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir605l" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

JLSEC-2026-401

A use after free vulnerability exists in curl 7.87.0. Curl can be asked to tunnel virtually all protocols it supports through an HTTP proxy. HTTP proxies can and often do deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocat...

JLSEC-2026-398

curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTPS URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request HTTP...

JLSEC-2026-405

A vulnerability in input validation exists in curl 8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform...

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

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

D-Link DIR-600L 信任管理问题漏洞

The D-Link DIR-600L is an entry-level wireless router from D-Link Corporation. It supports 150Mbps wireless transmission and has 4 Gigabit wired ports. There is a trust management vulnerability in the D-Link DIR-600L Hardware Revision A1. This vulnerability stems from a hard-coded telnet backdoor...

D-Link DIR-600L 信任管理问题漏洞

The D-Link DIR-600L is an entry-level wireless router from D-Link Corporation. It supports 150Mbps wireless transmission and has 4 Gigabit wired ports. The DIR-600L has a trust management vulnerability, which stems from a hard-coded telnet backdoor. This vulnerability could allow unauthenticated...

Analyzing Unsolicited Internet Traffic: Measuring IoT Security Threats Via Network Telescopes

Network telescopes serve as a critical passive monitoring tool for capturing unsolicited Internet traffic, providing insights into global scanning and reconnaissance behavior. This study analyzes a 10-day dataset during January 2025 consisting of approximately 22 million packets collected by the...

PT-2026-36833

Name of the Vulnerable Software and Affected Versions D-Link DIR-605L Hardware Revision A1 Description A hardcoded telnet backdoor exists where the device starts a telnet daemon at boot via the /bin/telnetd.sh script. The system uses a static username "Alphanetworks" and password "wrgn35 dlwbr...

D-Link DIR-456U 信任管理问题漏洞

The D-Link DIR-456U is a wireless router produced by D-Link Corporation. The D-Link DIR-456U Hardware Revision A1 has a vulnerability related to trust management. This vulnerability stems from a hard-coded telnet backdoor, which may allow unauthenticated attackers on the local network to obtain a...

D-Link DIR-605L 信任管理问题漏洞

The D-Link DIR-605L is a wireless router produced by D-Link Corporation. The D-Link DIR-605L Hardware Revision B2 version has a vulnerability related to trust management. This vulnerability stems from a hard-coded telnet backdoor, which allows unauthenticated attackers on the local network to...

D-Link DIR-605L 信任管理问题漏洞

The D-Link DIR-605L is a wireless router produced by D-Link Corporation. The D-Link DIR-605L in the Hardware Revision A1 version has a trust management vulnerability. This vulnerability stems from a hard-coded telnet backdoor, which allows unauthorized attackers on the local network to obtain roo...

CLSA-2026-1777463593 curl: Fix of CVE-2023-27533

CVE-2023-27533: telnet: only accept option arguments in ascii...

CLSA-2026-1777463367 curl: Fix of CVE-2023-27533

CVE-2023-27533: telnet: only accept option arguments in ascii...

CVE-2026-7152

A vulnerability was identified in Totolink A8000RU 7.1cu.643b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnetenabled leads to os command injection. It is possible to launch the attac...

EUVD-2026-25914

A vulnerability was identified in Totolink A8000RU 7.1cu.643b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnetenabled leads to os command injection. It is possible to launch the attac...

CVE-2026-7152 Totolink A8000RU CGI cstecgi.cgi setTelnetCfg os command injection

A vulnerability was identified in Totolink A8000RU 7.1cu.643b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnetenabled leads to os command injection. It is possible to launch the attac...

CVE-2026-6989

A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and...

PT-2026-35520

A vulnerability was identified in Totolink A8000RU 7.1cu.643 b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnet enabled leads to os command injection. It is possible to launch the...

TOTOLINK A8000RU 命令注入漏洞

TOTOLINK A8000RU is a wireless router produced by TOTOLINK, a Chinese company. The TOTOLINK A8000RU 7.1cu.643b20200521 version has a command injection vulnerability. This vulnerability stems from improper handling of the parameter “telnetenabled” in the function setTelnetCfg within the CGI Handle...