vim use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in vim. This vulnerability affects unknown code. This manipulation causes use after free. This vulnerability is registered as CVE-2021-4187. Remote exploitation of the attack is possible. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in vim (Word Processing Software) (the affected version is unknown) and classified as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 12/30/2021. The advisory is shared at huntr.dev. This vulnerability is known as CVE-2021-4187 since 12/28/2021. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233548 (Debian dla-4097 : vim - security update), which helps to determine the existence of the flaw in a target environment.

Applying the patch 4bf1006cae7e87259ccd5219128c3dba75774441 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (233548) and CERT Bund (WID-SEC-2022-0778). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Apple macOS

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (huntr.dev): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 233548
Nessus Name: Debian dla-4097 : vim - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 4bf1006cae7e87259ccd5219128c3dba75774441

Timelineinfo

12/28/2021 🔍
12/30/2021 +2 days 🔍
12/30/2021 +0 days 🔍
11/04/2025 +1405 days 🔍

Sourcesinfo

Product: github.com

Advisory: 4bf1006cae7e87259ccd5219128c3dba75774441
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-4187 (🔍)
GCVE (CVE): GCVE-0-2021-4187
GCVE (VulDB): GCVE-100-189445
CERT Bund: WID-SEC-2022-0778 - Apple macOS: Mehrere Schwachstellen

Entryinfo

Created: 12/30/2021 08:12
Updated: 11/04/2025 10:37
Changes: 12/30/2021 08:12 (48), 12/31/2021 14:54 (3), 03/30/2025 19:09 (16), 10/21/2025 10:52 (6), 11/04/2025 10:37 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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