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Stack-based buffer overflow in D-Link DIR-895L router (firmware A1_102b07) affects the udhcpcd DHCP server daemon's sendOffer() and sendACK() functions when parsing TR-111 Option 125 vendor-specific data. An adjacent-network unauthenticated attacker can send a crafted DHCP packet to trigger the overflow, potentially achieving arbitrary code execution on the router with daemon-level privileges. A public proof-of-concept exploit has been published targeting this exact vector, and no vendor patch has been identified for this legacy device.
Command injection in the D-Link DIR-895L router's DHCP server daemon allows a network-adjacent attacker to execute arbitrary OS commands by crafting a malicious Hostname option in a DHCP request. The vulnerable code path is in the `sendACK` function of `udhcpcd/serverpacket.c`, where the client-supplied Hostname field is processed without sanitization, leading to shell injection. A public proof-of-concept exploit exists targeting firmware version A1_102b07, and no vendor patch has been identified at time of analysis.
Stack-based buffer overflow in D-Link DIR-895L router (firmware A1_102b07) affects the udhcpcd DHCP server daemon's sendOffer() and sendACK() functions when parsing TR-111 Option 125 vendor-specific data. An adjacent-network unauthenticated attacker can send a crafted DHCP packet to trigger the overflow, potentially achieving arbitrary code execution on the router with daemon-level privileges. A public proof-of-concept exploit has been published targeting this exact vector, and no vendor patch has been identified for this legacy device.
Command injection in the D-Link DIR-895L router's DHCP server daemon allows a network-adjacent attacker to execute arbitrary OS commands by crafting a malicious Hostname option in a DHCP request. The vulnerable code path is in the `sendACK` function of `udhcpcd/serverpacket.c`, where the client-supplied Hostname field is processed without sanitization, leading to shell injection. A public proof-of-concept exploit exists targeting firmware version A1_102b07, and no vendor patch has been identified at time of analysis.