Vim: Heap Buffer Overflow when Loading a Spell File (CVE-2026-73072) | HOL Guard CVE

High · CVSS 8.5CVE-2026-73072

Vim: Heap Buffer Overflow when Loading a Spell File

Answer in brief

CVE-2026-73072 records a High severity (CVSS 8.5) vulnerability in Vim: Heap Buffer Overflow when Loading a Spell File. The current sources do not mark it as known exploited. The current feed maps vim/vim (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 11, 2026Updated Sep 17, 2026Source checked Sep 25, 2026First seen by HOL Aug 11, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vim/vim (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
vim/vimgeneric	< 9.2.0846	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for vim/vim.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 11, 2026

Sources and claim methodology

Upstream source description

Vim is an open source, command line text editor. Prior to 9.2.0846, set_sofo() in src/spellfile.c reuses sl_sal_first[] without resetting values left by set_sal_first(), so a crafted spell file containing an SN_SAL section before an SN_SOFO section causes under-counted mapping lists and attacker-influenced writes beyond a heap allocation. This issue is fixed in version 9.2.0846.

Quoted source text, attributed separately from HOL analysis.