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CVE-2026-57455 is a stack buffer overflow in Vim versions prior to 9.2.0698. The single-byte branch of spell_soundfold_sofo() translates a word using a spell language's SOFO sound-folding byte map into a caller-owned, MAXWLEN-element stack buffer. The copy loop increments the output index without checking the buffer boundary and stops only at the input NUL terminator. Processing a word longer than MAXWLEN through soundfold() or sound-based spell suggestions while a SOFO-based spell language is active writes beyond the buffer, corrupting the call frame and crashing the editor.
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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.
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Cross-references every affected SKU, including bundled OEM variants.
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