How severe is CVE-2021-43272?

CVE-2021-43272 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43272 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43272?

CVE-2021-43272 affects Opendesign Oda Viewer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43272?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-43272 published?

CVE-2021-43272 was published on 2021-11-14 and last updated on 2026-06-17.

CVE-2021-43272

CVE-2021-43272 is a critical-severity vulnerability in Opendesign Oda Viewer with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-755.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Opendesign Oda Viewer
Published: 2021-11-14
Last modified: 2026-06-17

Description

An improper handling of exceptional conditions vulnerability exists in Open Design Alliance ODA Viewer sample before 2022.11. ODA Viewer continues to process invalid or malicious DWF files instead of stopping upon an exception. An attacker can leverage this vulnerability to execute code in the context of the current process.

Frequently asked questions

What is CVE-2021-43272?: An improper handling of exceptional conditions vulnerability exists in Open Design Alliance ODA Viewer sample before 2022.11. ODA Viewer continues to process invalid or malicious DWF files instead of stopping upon an exception. An attacker can leverage this vulnerability to execute code in the context of the current process.
How severe is CVE-2021-43272?: CVE-2021-43272 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43272 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43272?: CVE-2021-43272 affects Opendesign Oda Viewer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43272?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-43272 published?: CVE-2021-43272 was published on 2021-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opendesign:oda_viewer:*:*:*:*:*:*:*:*

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