Skip to main content

Vim CVE-2026-28422

LOW
Stack-based Buffer Overflow (CWE-121)
2026-02-27 security-advisories@github.com
2.2
CVSS 3.1 · GitHub Advisory
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS 2.2 (LOW). Attack vector: Local. Complexity: High. Privileges required: Low. User interaction: Required.

Exploit ScenarioDerived

An attacker could exploit this vulnerability to compromise the affected system.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in build_stl_str_hl() when rendering a statusline with a multi-byte fill character on a very wide terminal. [CVSS 2.2 LOW]

RemediationAI

A vendor patch is available — apply it immediately.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-121 (Stack-based Buffer Overflow). Affects Vim. Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in build_stl_str_hl() when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.

Know when Vim gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

GitHub Advisory PRIMARY 2.2 LOW
AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch released
Mar 04, 2026 - 20:44 nvd
Patch available
CVE Published
Feb 27, 2026 - 22:16 nvd
LOW 2.2

DescriptionGitHub Advisory

Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in build_stl_str_hl() when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.

Executive ViewAI

Why It Matters

CVE-2026-28422 is a low-severity vulnerability in Vim (CVSS 2.2). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. A patch is available and can be applied during standard maintenance windows.

Business Impact: Low
Compensating Controls

Apply vendor patch during routine maintenance. Standard security controls provide adequate interim protection.

Threat Intelligence Overview

EPSS Score
0.0%
Top 100% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

11
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +11
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

More in Vim

View all
CVE-2022-3520 CRITICAL POC
9.8 Dec 02

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0765. Rated critical severity (CVSS 9.8), this vuln

CVE-2022-0729 HIGH POC
8.8 Feb 23

Use of Out-of-range Pointer Offset in GitHub repository vim/vim prior to 8.2.4440. Rated high severity (CVSS 8.8), this

CVE-2026-34714 HIGH POC
8.6 Mar 30

Code execution vulnerability in Vim before 9.2.0272 allows attackers to gain immediate arbitrary command execution upon

CVE-2019-12735 HIGH POC
8.6 Jun 05

getchar.c in Vim before 8.1.1365 and Neovim before 0.3.6 allows remote attackers to execute arbitrary OS commands via th

CVE-2021-3968 HIGH POC
8.0 Nov 19

vim is vulnerable to Heap-based Buffer Overflow. Rated high severity (CVSS 8.0), this vulnerability is remotely exploita

CVE-2022-1616 HIGH POC
7.8 May 07

Use after free in append_command in GitHub repository vim/vim prior to 8.2.4895. Rated high severity (CVSS 7.8), this vu

CVE-2022-1619 HIGH POC
7.8 May 08

Heap-based Buffer Overflow in function cmdline_erase_chars in GitHub repository vim/vim prior to 8.2.4899. Rated high se

CVE-2021-4136 HIGH POC
7.8 Dec 19

vim is vulnerable to Heap-based Buffer Overflow. Rated high severity (CVSS 7.8), this vulnerability is no authentication

CVE-2021-3973 HIGH POC
7.8 Nov 19

vim is vulnerable to Heap-based Buffer Overflow. Rated high severity (CVSS 7.8), this vulnerability is no authentication

CVE-2021-3927 HIGH POC
7.8 Nov 05

vim is vulnerable to Heap-based Buffer Overflow. Rated high severity (CVSS 7.8), this vulnerability is no authentication

CVE-2022-2125 HIGH POC
7.8 Jun 19

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2. Rated high severity (CVSS 7.8), this vulnerability

CVE-2022-2126 HIGH POC
7.8 Jun 19

Out-of-bounds Read in GitHub repository vim/vim prior to 8.2. Rated high severity (CVSS 7.8), this vulnerability is no a

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy