Is CVE-2021-3933 in the CISA KEV catalog?

No. CVE-2021-3933 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3933?

CVE-2021-3933 has a CVSS v3 base score of 5.5 (MEDIUM).

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

CVE-2021-3933 has an EPSS score of 0.85% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3933?

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-2021-3933

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-190Integer Overflow

How to fix

Remediation Available

openexrDebian

Fixed in:2.5.4-2+deb11u1CVE-2021-3933

Fixed in:3.1.5-2CVE-2021-3933

libopenexr22Ubuntu

Fixed in:2.2.0-10ubuntu2.6+esm2USN-5144-1

Fixed in:2.2.0-11.1ubuntu1.8USN-5144-1

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+esm2USN-5144-1

Fixed in:2.2.0-11.1ubuntu1.8USN-5144-1

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

0.85%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Third-Party Advisory4

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

Embed a live status badge for CVE-2021-3933

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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.