CVE-2002-0906

CVE-2002-0906 describes a buffer overflow vulnerability in Sendmail versions prior to 8.12.5. This flaw occurs when Sendmail is configured to use a custom DNS map for TXT record queries, allowing a malicious DNS server to trigger a denial of service or potentially execute arbitrary code. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector and low attack complexity, enabling potential compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.