Is CVE-2021-3674 actively exploited?

CVE-2021-3674 has no public evidence of in-the-wild exploitation as of 2025-02-25.

What is the CVSS score for CVE-2021-3674?

CVE-2021-3674 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-3674?

Patch guidance is available from rizin security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-3674.

Fix CVE-2021-3674 - HIGH rizin rizin

Description

A flaw was found in rizin. The create_section_from_phdr function allocates space for ELF section data by processing the headers. Crafted values in the headers can cause out of bounds reads, which can lead to memory corruption and possibly code execution through the binary object's callback function.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors CWE-125 · Out-of-bounds Read CWE-125 · Out-of-bounds Read

Metadata

Primary Vendor: RIZIN
Published: 3/24/2023
Last Modified: 2/25/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

rizin : rizin

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-3674. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-3674

View on NIST NVD

CVE-2021-3674 vulnerability