CVE-2021-26260

Name: CVE-2021-26260
Creator: NVD / NIST
Published: 2021-06-08T12:15:10.79+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2021-26260 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR. This is a different flaw from CVE-2021-23215.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openexr	Openexr	< 3.0.1
Fedoraproject	Fedora	33
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1947582Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXFLD4ZAXKAIWO6ZPBCQEEDZB5IG676K/
https://www.debian.org/security/2022/dsa-5299Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1947582Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXFLD4ZAXKAIWO6ZPBCQEEDZB5IG676K/
https://www.debian.org/security/2022/dsa-5299Third Party Advisory

Timeline

Published: Jun 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26260?

How severe is CVE-2021-26260?

CVE-2021-26260 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26260?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-26260?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST