TI-2024-27979 Aliases CVE-2024-41957

Vim double free in src/alloc.c:616

LOW 24CWE-415Published 2024-08-01 · Updated 2025-11-04

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

Vim is an open source command line text editor. Vim < v9.1.0647 has double free in src/alloc.c:616. When closing a window, the corresponding tagstack data will be cleared and freed. However a bit later, the quickfix list belonging to that window will also be cleared and if that quickfix list points to the same tagstack data, Vim will try to free it again, resulting in a double-free/use-after-free access exception. Impact is low since the user must intentionally execute vim with several non-default flags, but it may cause a crash of Vim. The issue has been fixed as of Vim patch v9.1.0647

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00366 30th percentileScored 2026-11-07

Fix Partial vim (vim): 9.1.0647Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
vim	vim	before 9.1.0647	9.1.0647	Patch available	CNA

vim Vendorvim Affected before 9.1.0647 Fixed in 9.1.0647 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:vim:vim::::::::	before 9.1.0647	Vulnerable	vim

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:* Versions before 9.1.0647 Vulnerable ·vim

Remediation

Fix · CNA vim (vim) Fixed in 9.1.0647

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet
Red Hat Enterprise Linux 9	Affected	No fix yet
Red Hat OpenShift AI (RHOAI)	Affected	—
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred

Not affected: 3 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8

Timeline

2026-10-02 Threatist record created from CVE-2024-41957
2026-10-22 Affected versions changed · Red Hat
2026-10-22 CVSS score added · Red Hat
2026-11-06 Affected versions changed · Red Hat

References

Patch 1

https://github.com/vim/vim/commit/8a0bbe7b8aad6f8da28dee218c01bc8a0185a

Advisory 1

https://github.com/vim/vim/security/advisories/GHSA-f9cr-gv85-hcr4

TI-2022-03248 Heap-based Buffer Overflow in vim/vim CVSS 3.1CRITICAL 9.8
TI-2024-15103 Vim before 9.0.2142 has a stack-based buffer overflow because did_set_langmap in map.c… CVSS 3.1HIGH 7.8
TI-2023-05093 Use After Free in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04407 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04379 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04378 Use After Free in vim/vim CVSS 3.1HIGH 7.8

See all 258 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences