Is CVE-2021-3933 actively exploited?

CVE-2021-3933 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-3933?

CVE-2021-3933 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

How do I patch CVE-2021-3933?

Patch guidance is available from openexr security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-3933.

CVE-2021-3933 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-3933?

4 products: openexr openexr, fedoraproject fedora, debian debian linux, debian debian linux.

Description

An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-190 · Integer Overflow CWE-190 · Integer Overflow

Metadata

Primary Vendor: OPENEXR
Published: 3/25/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

openexr : openexrfedoraproject : fedoradebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-3933. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-3933

View on NIST NVD

CVE-2021-3933 vulnerability