{"api_version":"1","generated_at":"2026-07-23T11:42:32+00:00","cve":"CVE-2023-25563","urls":{"html":"https://cve.report/CVE-2023-25563","api":"https://cve.report/api/cve/CVE-2023-25563.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-25563","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-25563"},"summary":{"title":"CVE-2023-25563","description":"GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. 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