CVE-2026-73072
Vim: Heap Buffer Overflow when Loading a Spell File
HIGH 8.5EPSS 0.1%
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.
- Affected
- vim
- CVSS v4.0 GITHUB
- 8.5 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 7.3 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.11% chance of exploitation in the next 30 days, 1st percentile
- Published
- 2026-08-11
- Updated
- 2026-09-17
Proof-of-concept exploits (1)
- HORKimhab/CVE-2026-730720★ · 2026-08-19
Security advisories
- vim/vim/security/advisories/GHSA-9jqx-hgpr-6v64
- vim/vim/commit/05c41c922309c7a11b6ec2f124be66551c90d66a