High severity · published Aug 11, 2026
CVE-2026-73072
Vim: Heap Buffer Overflow when Loading a Spell File
7.3
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
vim · vim
< 9.2.0846 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73072
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73072
Patch
https://github.com/vim/vim/commit/05c41c922309c7a11b6ec2f124be66551c90d66a
Product
https://github.com/vim/vim/releases/tag/v9.2.0846
Patch
https://github.com/vim/vim/security/advisories/GHSA-9jqx-hgpr-6v64
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