Vim up to 9.2.697 src/spell.c spell_soundfold_sofo out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Vim up to 9.2.697 and classified as critical. The affected element is the function spell_soundfold_sofo of the file src/spell.c. Performing a manipulation results in out-of-bounds write. This vulnerability is cataloged as CVE-2026-57455. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Vim up to 9.2.697. It has been classified as critical. This affects the function spell_soundfold_sofo of the file src/spell.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0698.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-57455 since 06/24/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 328511 (Amazon Linux 2023 : vim-common, vim-data, vim-default-editor (ALAS2023-2026-1940)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.2.0698 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (328511) and CERT Bund (WID-SEC-2026-2026). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • Red Hat OpenShift
  • RESF Rocky Linux
  • Open Source vim
  • Oracle Linux

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 328511
Nessus Name: Amazon Linux 2023 : vim-common, vim-data, vim-default-editor (ALAS2023-2026-1940)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Vim 9.2.0698

Timelineinfo

06/24/2026 CVE reserved
06/25/2026 +1 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
09/28/2026 +95 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CNA: GitHub_M
CVE: CVE-2026-57455 (🔒)

GCVE (CVE): GCVE-0-2026-57455
GCVE (VulDB): GCVE-100-373929
CERT Bund: WID-SEC-2026-2026 - vim: Mehrere Schwachstellen

Entryinfo

Created: 06/25/2026 17:53
Updated: 09/28/2026 21:24
Changes: 06/25/2026 17:53 (69), 07/21/2026 12:47 (2), 07/30/2026 18:53 (8), 09/28/2026 21:24 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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