Is CVE-2021-26260 in the CISA KEV catalog?

No. CVE-2021-26260 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-26260?

CVE-2021-26260 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-26260?

CVE-2021-26260 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-26260?

Upgrade openexr on debian 11 to 2.5.4-2+deb11u1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-26260

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-400Resource Exhaustion CWE-190Integer Overflow

How to fix

Remediation Available

openexrDebian

Fixed in:2.5.4-2+deb11u1CVE-2021-26260

Fixed in:2.5.7-1CVE-2021-26260

libopenexr22Ubuntu

Fixed in:2.2.0-10ubuntu2.6+esm1USN-4996-2

Fixed in:2.2.0-11.1ubuntu1.7USN-4996-1

libopenexr24Ubuntu

Fixed in:2.3.0-6ubuntu0.5+esm1USN-5620-1

libopenexr25Ubuntu

Fixed in:2.5.7-1ubuntu0.1~esm1USN-5620-1

openexrUbuntu

Fixed in:2.2.0-10ubuntu2.6+esm1USN-4996-2

Fixed in:2.2.0-11.1ubuntu1.7USN-4996-1

Fixed in:2.3.0-6ubuntu0.5+esm1USN-5620-1

Fixed in:2.5.7-1ubuntu0.1~esm1USN-5620-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory3

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

Embed a live status badge for CVE-2021-26260

Markdown

[![CVE-2021-26260](https://tridentstack.com/cve/badge/CVE-2021-26260.svg)](https://tridentstack.com/cve/CVE-2021-26260)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-26260"><img src="https://tridentstack.com/cve/badge/CVE-2021-26260.svg" alt="CVE-2021-26260"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.