CVE-2000-1198 is a local denial-of-service vulnerability in the qpopper POP server. qpopper creates mailbox lock files using predictable names, allowing a local user to pre-create lock files corresponding to other users' mailboxes. The server treats these attacker-created locks as legitimate mailbox locks, blocking affected users' mail access.
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What an attacker gets, and what they’ve been doing with it.
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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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A predictable lock-file-name vulnerability in the qpopper POP server that enables local users to deny other users access to their mailboxes by pre-creating lock files.
Use of predictable lock-file names arising from insufficient randomness.
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.