Is CVE-2021-20299 actively exploited?

CVE-2021-20299 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-20299?

CVE-2021-20299 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2021-20299?

Patch guidance is available from openexr security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-20299.

Which products are affected by CVE-2021-20299?

2 products: openexr openexr, debian debian linux.

Fix CVE-2021-20299 - HIGH openexr openexr

Description

A flaw was found in OpenEXR's Multipart input file functionality. A crafted multi-part input file with no actual parts can trigger a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-476 · NULL Pointer Dereference CWE-476 · NULL Pointer Dereference

Metadata

Primary Vendor: OPENEXR
Published: 3/16/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

openexr : openexrdebian : debian_linux

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-20299. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-20299

View on NIST NVD

CVE-2021-20299 vulnerability