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CVE-2003-0681 is a remotely reachable buffer overflow vulnerability in Sendmail 8.12.9 involving ruleset parsing. The flaw is triggered when Sendmail processes nonstandard recipient, final, or mailer-specific envelope recipient rulesets. Available technical reporting also associates the issue with unsafe memory handling in the prescan() path, where malformed input can lead to an off-by-one overwrite of adjacent heap metadata during address parsing. Subsequent processing can use the corrupted state in later validation and memory-management operations, creating a path to memory corruption. The issue affects network-exposed mail processing and has been described as potentially enabling arbitrary code execution on vulnerable systems.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A buffer overflow vulnerability in Sendmail ruleset parsing affecting Sendmail 8.12.9 and related packaged products; it is significant because it is remotely reachable over the network and rated High severity in the content.
A remote buffer overrun vulnerability in the prescan() function of Sendmail 8.12.9 and earlier that could allow arbitrary code execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.