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CVE-2026-86510 is a remote out-of-bounds write vulnerability in firmware A_101 for the D-Link DIR-822A router. The flaw is in the L2TP Control Message Parser, specifically the tunnel_set_params function, when processing an L2TP Host Name AVP. Crafted control-message input can cause a write outside the intended memory-buffer bounds.
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A remotely exploitable out-of-bounds write vulnerability in the L2TP Control Message Parser's tunnel_set_params function in D-Link DIR-822A A_101.
A remotely exploitable out-of-bounds write in the L2TP Control Message Parser's tunnel_set_params function in D-Link DIR-822A firmware version A_101. Exploitation requires low privileges and could compromise confidentiality, integrity, and availability.
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Cross-references every affected SKU, including bundled OEM variants.
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