How severe is CVE-2021-43273?

CVE-2021-43273 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-43273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43273?

CVE-2021-43273 affects Opendesign Drawings Sdk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43273?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-43273 published?

CVE-2021-43273 was published on 2021-11-14 and last updated on 2026-06-17.

CVE-2021-43273

CVE-2021-43273 is a low-severity vulnerability in Opendesign Drawings Sdk with a CVSS 3.x base score of 3.3. 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-125.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Opendesign Drawings Sdk
Published: 2021-11-14
Last modified: 2026-06-17

Description

An Out-of-bounds Read vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.11. Crafted data in a DGN file and lack of verification of input data can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Frequently asked questions

What is CVE-2021-43273?: An Out-of-bounds Read vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.11. Crafted data in a DGN file and lack of verification of input data can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
How severe is CVE-2021-43273?: CVE-2021-43273 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-43273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43273?: CVE-2021-43273 affects Opendesign Drawings Sdk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43273?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43273 published?: CVE-2021-43273 was published on 2021-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opendesign:drawings_sdk:*:*:*:*:*:*:*:*

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