Threats Tagged 'cve-2026-99083'
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Threats Tagged 'cve-2026-99083'
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A heap out-of-bounds write vulnerability in the Linux kernel's ksmbd component was fixed in the krb5_authenticate() function. The flaw occurs because the calculation of available buffer space (out_len) for the Kerberos AP-REP token does not account for prior responses in a compounded SMB2 request, leading to an overestimation of buffer headroom. This causes a length check to erroneously pass, allowing memcpy() to write beyond the allocated buffer into adjacent kernel heap memory. The issue is resolved by correctly subtracting the offset of prior responses when computing the available buffer space. Join the discussion | GCVE Database | 10/23/2026, 15:31:37 UTC Added: 10/23/2026, 18:43:26 UTC |
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