CVE-2026-36607

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 allows unauthenticated brute-force attacks via the TDDP password change endpoint code=10, which lacks the rate limiting applied to the login endpoint code=7. An attacker on the adjacent network can attempt unlimited passwords without...

CVE-2026-36611

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 returns 128 bytes of uninitialized buffer when receiving POST requests without SOAPAction header on UPnP port 1900, exposing internal memory to unauthenticated adjacent network attackers...

PT-2026-45999

Mercusys AC12G EU V1 with firmware AC12GEU V1 200909 returns 128 bytes of uninitialized buffer when receiving POST requests without SOAPAction header on UPnP port 1900, exposing internal memory to unauthenticated adjacent network attackers...

CVE-2026-36603

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 exposes 15 of 18 UPnP IGD actions without authentication on port 1900, including AddPortMapping and GetExternalIPAddress. UPnP is enabled by default through the admin interface, allowing any unauthenticated LAN device to create arbitrary...

PT-2026-46002

Mercusys AC12G EU V1 with firmware AC12GEU V1 200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer contents to unauthenticated attackers on the adjacent network...

EUVD-2026-34146

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 allows unauthenticated brute-force attacks via the TDDP password change endpoint code=10, which lacks the rate limiting applied to the login endpoint code=7. An attacker on the adjacent network can attempt unlimited passwords without...

CVE-2026-36618

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software version unbound 1.22.0, aiding targeted attacks against known vulnerabilities...

CVE-2026-36609

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 uses a static authentication nonce that does not change between requests from the same source IP. Combined with the predictable XOR-based password encoding securityEncode function, this allows an attacker to reverse captured authentication...

EUVD-2026-34155

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software version unbound 1.22.0, aiding targeted attacks against known vulnerabilities...

CVE-2026-36605

CVE-2026-36605 affects the Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909. The issue is a vulnerability to a HTTP denial of service triggered by a small number of crafted incomplete HTTP requests, resulting in a persistent crash that requires physical power cycling to recover. Th...

CVE-2026-36610

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 transmits DDNS credentials over plaintext HTTP with only Base64 encoding; the firmware contains no TLS, enabling man-in-the-middle interception of DDNS credentials.

CVE-2026-36608

The advisory concerns the Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909. A UPnP AddPortMapping issue allows an unauthenticated LAN attacker to forward external ports to the router’s admin interface by abusing the InternalClient field (accepting 192.168.1.1 or 127.0.0.1). This en...

CVE-2026-36602

CVE-2026-36602 affects the Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909. The issue arises in UPnP GetStatusInfo handling, which discloses kernel memory layout. An unauthenticated attacker on an adjacent network can obtain a raw MIPS KSEG0 kernel pointer, exposing kernel memory ...

PT-2026-46003

Mercusys AC12G EU V1 with firmware AC12GEU V1 200909 contains hardcoded WiFi driver credentials including a RADIUS shared secret, WPS test key, and default PSK embedded in the production firmware binary...

CVE-2026-36613

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers...

CVE-2026-36607

Mercusys AC12G (EU) V1 router, firmware AC12G(EU)_V1_200909, is affected by CVE-2026-36607. The TDDP password change endpoint (code=10) allows unauthenticated brute-force attempts without rate limiting, unlike the login endpoint (code=7). An attacker on an adjacent network can attempt unlimited p...

Mercusys AC12G 安全漏洞

The Mercusys AC12G is a Gigabit wireless router produced by the Chinese company Mercusys. The Mercusys AC12G EU V1 AC12G EU V1 version released in September 2009 contained security vulnerabilities. These vulnerabilities were caused by the UPnP GetStatusInfo operation, which disclosed the kernel...

Mercusys AC12G 安全漏洞

The Mercusys AC12G is a Gigabit wireless router produced by the Chinese company Mercusys. The Mercusys AC12G EU V1 AC12G EU V1 version has a security vulnerability. This vulnerability stems from an HTTP denial-of-service attack, which may cause continuous crashes due to a small number of speciall...

Mercusys AC12G 安全漏洞

The Mercusys AC12G is a Gigabit wireless router produced by the Chinese company Mercusys. The Mercusys AC12G EU V1 AC12G EU V1 version has security vulnerabilities. These vulnerabilities stem from unvalidated UPnP IGD operations, which may allow unauthenticated LAN devices to create arbitrary por...

Mercusys AC12G 安全漏洞

The Mercusys AC12G is a Gigabit wireless router produced by the Chinese company Mercusys. The Mercusys AC12G EU V1 AC12G EU V1 version has a security vulnerability. This vulnerability arises from returning uninitialized internal buffer contents when HTTP POST requests are sent to an undefined pat...