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CVE-2026-55693 is a stack-based out-of-bounds write in Vim versions prior to 9.2.0653. The tree_count_words() function iteratively traverses a spell-file word trie using a depth counter to index fixed MAXWLEN-element arrays. The counter is not checked against the array bounds. A crafted spell-file and suggestion-file pair can cause excessively deep traversal when a user invokes spell suggestion, resulting in writes beyond the stack arrays, call-frame corruption, and an editor crash.
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No public exploit code observed for this vulnerability.
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30 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability covered by the Huawei EulerOS Vim security update. Individual technical details are not provided.
A vulnerability covered by the EulerOS Vim security check. Specific flaw details and impacts are not provided.
A vulnerability covered by Huawei EulerOS advisory EulerOS_SA-2026-4295 for Vim packages. The excerpt does not describe its technical cause or individual impact.
A vulnerability covered by the EulerOS Vim security update; its underlying flaw and individual exploit availability are not described.
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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.