The Web Management of TP-Link TP-SG105E V4 1.0.0 Build 20181120 devices allows an unauthenticated attacker to reboot the device via a reboot.cgi request.

A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11, triggered by the dnsserver1 and dnsserver2 parameters at /userRpm/WanSlaacCfgRpm.htm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11 via the pskSecret parameter at /userRpm/WlanSecurityRpm.htm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

A denial of service vulnerability exists in the TDDP functionality of Tp-Link AC1350 Wireless MU-MIMO Gigabit Access Point (EAP225 V3) v5.1.0 Build 20220926. A specially crafted series of network requests can lead to reset to factory settings. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.

Buffer Overflow in TP-Link WR2041 v1 firmware for the TL-WR2041+ router allows remote attackers to cause a Denial-of-Service (DoS) by sending an HTTP request with a very long "ssid" parameter to the "/userRpm/popupSiteSurveyRpm.html" webpage, which crashes the router.

The HTTPS server on Tapo C200 V3 does not properly validate the Content-Length header, which can lead to an integer overflow. An unauthenticated attacker on the same local network segment can send crafted HTTPS requests to trigger excessive memory allocation, causing the device to crash and resulting in denial-of-service (DoS).

A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allows  an adjacent attacker to cause a denial-of-service (DoS) by triggering a device reboot. This issue affects Archer BE400: xi 1.1.0 Build 20250710 rel.14914.

A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write‑boundary verification, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.

A stack overflow in the function DM_ In fillobjbystr() of TP-Link Archer C50&A5(US)_V5_200407 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to insufficient alignment and validation of buffer boundaries when processing streaming inputs.An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.

A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker can exploit this vulnerability by supplying an excessively long value for a vulnerable configuration parameter, resulting in a stack overflow. Successful exploitation results in Denial-of-Service (DoS) condition, leading to a service crash or device reboot, impacting availability.

TP-Link Archer C50 V3 devices before Build 200318 Rel. 62209 allows remote attackers to cause a denial of service via a crafted HTTP Header containing an unexpected Referer field.

A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.

An infinite loop in the function httpRpmPass of TP-Link TL-WR741N/TL-WR742N V1/V2/V3_130415 allows attackers to cause a Denial of Service (DoS) via a crafted packet.

A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.

An exploitable denial-of-service vulnerability exists in the URI-parsing functionality of the TP-Link TL-R600VPN HTTP server. A specially crafted URL can cause the server to stop responding to requests, resulting in downtime for the management portal. An attacker can send either an unauthenticated or authenticated web request to trigger this vulnerability.

TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain an integer overflow via the function dm_checkString. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WlanNetworkRpm_AP.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

The Tapo C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.

The HTTP parser of Tapo C220 v1 and C520WS v2 cameras improperly handles requests containing an excessively long URL path. An invalid‑URL error path continues into cleanup code that assumes allocated buffers exist, leading to a crash and service restart. An unauthenticated attacker can force repeated service crashes or device reboots, causing denial of service.

A misconfiguration in HTTP/1.0 and HTTP/1.1 of the web interface in TP-Link AX10v1 before V1_211117 allows a remote unauthenticated attacker to send a specially crafted HTTP request and receive a misconfigured HTTP/0.9 response, potentially leading into a cache poisoning attack.

A denial-of-service attack in WPA2, and WPA3-SAE authentication methods in TP-Link AX10v1 before V1_211014, allows a remote unauthenticated attacker to disconnect an already connected wireless client via sending with a wireless adapter specific spoofed authentication frames

In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set.

By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.

A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.

TP-LINK TL-WR1043ND V1_120405 devices contain an unspecified denial of service vulnerability.

A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WlanNetworkRpm_APC.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/WzdWlanSiteSurveyRpm_AP.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability has been found in TP-Link TL-WR841N V11. The vulnerability exists in the /userRpm/Wan6to4TunnelCfgRpm.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability has been found in TP-Link TL-WR841N v11, TL-WR842ND v2 and TL-WR494N v3. The vulnerability exists in the /userRpm/WlanNetworkRpm.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

TP Link MR200 V4 Firmware version 210201 was discovered to contain a null-pointer-dereference in the web administration panel on /cgi/login via the sign, Action or LoginStatus query parameters which could lead to a denial of service by a local or remote unauthenticated attacker.

A vulnerability classified as critical has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected is an unknown function of the file /control/WANIPConnection of the component SOAP Request Handler. The manipulation of the argument NewConnectionType leads to buffer overflow. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as critical, has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected by this issue is some unknown functionality of the component DHCP DISCOVER Packet Parser. The manipulation of the argument hostname leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A memory corruption vulnerability exists in the web interface functionality of Tp-Link AC1350 Wireless MU-MIMO Gigabit Access Point (EAP225 V3) v5.1.0 Build 20220926. A specially crafted HTTP POST request can lead to denial of service of the device's web interface. An attacker can send an unauthenticated HTTP POST request to trigger this vulnerability.

TP-Link NC200 through 2.1.8_Build_171109, NC210 through 1.0.9_Build_171214, NC220 through 1.3.0_Build_180105, NC230 through 1.3.0_Build_171205, NC250 through 1.3.0_Build_171205, NC260 through 1.5.1_Build_190805, and NC450 through 1.5.0_Build_181022 devices allow a remote NULL Pointer Dereference.

Insecure Permissions vulnerability in Connectivity Standards Alliance Matter Official SDK v.1.1.0.0 , Nanoleaf Light strip v.3.5.10, Govee LED Strip v.3.00.42, switchBot Hub2 v.1.0-0.8, Phillips hue hub v.1.59.1959097030, and yeelight smart lamp v.1.12.69 allows a remote attacker to cause a denial of service via a crafted script to the KeySetRemove function.

TP-Link TL-WR940N V2, TP-Link TL-WR941ND V5 and TP-Link TL-WR841N V8 were discovered to contain a buffer overflow via the component /userRpm/AccessCtrlAccessRulesRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

An issue in the component /userRpm/NetworkCfgRpm of TP-Link TL-WR1041N V2 allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR740N V1/V2, TL-WR940N V2/V3, and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/AccessCtrlTimeSchedRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/QoSRuleListRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

TP-LINK Archer C50v2 Archer C50(US)_V2_160801, TP-LINK Archer C20v1 Archer_C20_V1_150707, and TP-LINK Archer C2v1 Archer_C2_US__V1_170228 were discovered to contain a buffer overflow which may lead to a Denial of Service (DoS) when parsing crafted data.

A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11 via the 'ip' parameter at /userRpm/WanStaticIpV6CfgRpm.htm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.

An HTTP request smuggling attack in TP-Link AX10v1 before v1_211117 allows a remote unauthenticated attacker to DoS the web application via sending a specific HTTP packet.

A Denial-of-Service (DoS) vulnerability in the httpd component of TP-Link's TD-W8961N v4.0 due to improper input sanitization, allows crafted requests to trigger a processing error that causes the httpd service to crash. Successful exploitation may allow the attacker to cause service interruption, resulting in a DoS condition.

TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buffer read out-of-bounds via the component /userRpm/VirtualServerRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via the component /userRpm/FixMapCfgRpm.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AC1750 prior to 211210 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB.ko kernel module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15773.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AC1750 1.1.4 Build 20211022 rel.59103(5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB.ko module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-15769.

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via the component /userRpm/WlanMacFilterRpm.

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read.