{"api_version":"1","generated_at":"2026-07-24T19:59:19+00:00","cve":"CVE-2023-25564","urls":{"html":"https://cve.report/CVE-2023-25564","api":"https://cve.report/api/cve/CVE-2023-25564.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-25564","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-25564"},"summary":{"title":"CVE-2023-25564","description":"GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. 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