On TP-Link NC250 devices with firmware through 1.2.1 build 170515, anyone can view video and audio without authentication via an rtsp://admin@yourip:554/h264_hd.sdp URL.

The executable httpd on the TP-Link WR841N V8 router before TL-WR841N(UN)_V8_170210 contained a design flaw in the use of DES for block encryption. This resulted in incorrect access control, which allowed attackers to gain read-write access to system settings through the protected router configuration service tddp via the LAN and Ath0 (Wi-Fi) interfaces.

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow remote code execution with a single HTTP request by placing shell commands in a "host=" line within HTTP POST data.

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow DoSing the HTTP server via a crafted Cookie header to the /cgi/ansi URI.

vsftpd on TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n has a backdoor admin account with the 1234 password, a backdoor guest account with the guest password, and a backdoor test account with the test password.

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n have too permissive iptables rules, e.g., SNMP is not blocked on any interface.

On the TP-Link TL-SG108E 1.0, the upgrade process can be requested remotely without authentication (httpupg.cgi with a parameter called cmd). This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

On the TP-Link TL-SG108E 1.0, there is a hard-coded ciphering key (a long string beginning with Ei2HNryt). This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

On the TP-Link TL-SG108E 1.0, admin network communications are RC4 encoded, even though RC4 is deprecated. This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

On the TP-Link TL-SG108E 1.0, a remote attacker could retrieve credentials from "Switch Info" log lines where passwords are in cleartext. This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

On the TP-Link TL-SG108E 1.0, a remote attacker could retrieve credentials from "SEND data" log lines where passwords are encoded in hexadecimal. This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

TP-LINK lost control of two domains, www.tplinklogin.net and tplinkextender.net. Please note that these domains are physically printed on many of the devices.

Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before 150304, and C8 (1.0) with firmware before 150316, Archer C9 (1.0), TL-WDR3500 (1.0), TL-WDR3600 (1.0), and TL-WDR4300 (1.0) with firmware before 150302, TL-WR740N (5.0) and TL-WR741ND (5.0) with firmware before 150312, and TL-WR841N (9.0), TL-WR841N (10.0), TL-WR841ND (9.0), and TL-WR841ND (10.0) with firmware before 150310 allows remote attackers to read arbitrary files via a .. (dot dot) in the PATH_INFO to login/.

Cross-site request forgery (CSRF) vulnerability in the administration console in TP-Link TL-WR840N (V1) router with firmware before 3.13.27 build 141120 allows remote attackers to hijack the authentication of administrators for requests that change router settings via a configuration file import.

TP-Link TL-WR740N 4 with firmware 3.17.0 Build 140520, 3.16.6 Build 130529, and 3.16.4 Build 130205 allows remote attackers to cause a denial of service (httpd crash) via vectors involving a "new" value in the isNew parameter to PingIframeRpm.htm.

Multiple cross-site request forgery (CSRF) vulnerabilities on the TP-LINK WR1043N router with firmware TL-WR1043ND_V1_120405 allow remote attackers to hijack the authentication of administrators for requests that (1) enable FTP access (aka "FTP directory traversal") to /tmp via the shareEntire parameter to userRpm/NasFtpCfgRpm.htm, (2) change the FTP administrative password via the nas_admin_pwd parameter to userRpm/NasUserAdvRpm.htm, (3) enable FTP on the WAN interface via the internetA parameter to userRpm/NasFtpCfgRpm.htm, (4) launch the FTP service via the startFtp parameter to userRpm/NasFtpCfgRpm.htm, or (5) enable or disable bandwidth limits via the QoSCtrl parameter to userRpm/QoSCfgRpm.htm.

The web server in the TP-LINK N750 Wireless Dual Band Gigabit Router (TL-WDR4300) with firmware before 140916 allows remote attackers to cause a denial of service (crash) via a long header in a GET request.

Cross-site scripting (XSS) vulnerability in the DHCP clients page in the TP-LINK N750 Wireless Dual Band Gigabit Router (TL-WDR4300) with firmware before 140916 allows remote attackers to inject arbitrary web script or HTML via the hostname in a DHCP request.

Multiple cross-site scripting (XSS) vulnerabilities in the TP-LINK TL-WR841N router with firmware 3.13.9 Build 120201 Rel.54965n and earlier allow remote administrators to inject arbitrary web script or HTML via the (1) username or (2) pwd parameter to userRpm/NoipDdnsRpm.htm.

Cross-site scripting (XSS) vulnerability in Allegro RomPager before 4.51, as used on the ZyXEL P660HW-D1, Huawei MT882, Sitecom WL-174, TP-LINK TD-8816, and D-Link DSL-2640R and DSL-2641R, when the "forbidden author header" protection mechanism is bypassed, allows remote attackers to inject arbitrary web script or HTML by requesting a nonexistent URI in conjunction with a crafted HTTP Referer header that is not properly handled in a 404 page. NOTE: there is no CVE for a "URL redirection" issue that some sources list separately.