Is CVE-2021-43336 in the CISA KEV catalog?

No. CVE-2021-43336 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-43336?

CVE-2021-43336 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-43336?

CVE-2021-43336 has an EPSS score of 1.64% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-43336?

Upgrade drawings software development kit to 2022.11 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-43336

HIGHEPSS 74th pctl

7.8

CVSS v3

NVD

Description

An Out-of-Bounds Write vulnerability exists when reading a DXF or DWG file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DXF and DWG files. Crafted data in a DXF or DWG file (an invalid number of properties) can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

drawings software development kitNVD

Affected:< 2022.11Fixed in:2022.11CVE-2021-43336derived from NVD

teamcenter visualizationNVD

Affected:>= 13.2.0, < 13.3.0.1Fixed in:13.3.0.1CVE-2021-43336derived from NVD

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.64%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Vendor Advisory1

opendesign.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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.