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An integer overflow vulnerability exists in eXtremail 2.1.1 and earlier, where a long USER command containing "%s" sequences sent to the POP3 service (port 110/tcp) is improperly handled. The sequences are expanded to "%%s" before being passed to the memmove function, leading to an integer overflow. This flaw is likely due to an incomplete fix for CVE-2001-1078.
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No valid public exploits. Mallory filtered out 4 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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No public activity observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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