What is the CVSS score of CVE-2021-4019?

CVE-2021-4019 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2021-4019?

Yes, a public proof-of-concept exploit is available for CVE-2021-4019. Prioritise patching immediately. EPSS: 0.3%.

Is there a patch available for CVE-2021-4019?

Yes, a patch is available for CVE-2021-4019. Update the affected software to the latest version immediately.

Neovim CVE-2021-4019

HIGH

Heap-based Buffer Overflow (CWE-122)

2021-12-01 security@huntr.dev

Buffer Overflow Heap Overflow Neovim Vim Fedora Debian Linux

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 01, 2021 - 10:15 cve.org

HIGH 7.8

DescriptionCVE.org

vim is vulnerable to Heap-based Buffer Overflow

AnalysisAI

vim is vulnerable to Heap-based Buffer Overflow. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-122. Affected products include: Neovim, Vim, Fedoraproject Fedora, Debian Debian Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.