How severe is CVE-2020-13520?

CVE-2020-13520 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13520?

CVE-2020-13520 primarily affects Pixar Openusd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-13520?

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

When was CVE-2020-13520 published?

CVE-2020-13520 was published on 2020-12-11 and last updated on 2026-06-17.

CVE-2020-13520

CVE-2020-13520 is a high-severity vulnerability in Pixar Openusd with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Pixar Openusd
Published: 2020-12-11
Last modified: 2026-06-17

Description

An out of bounds memory corruption vulnerability exists in the way Pixar OpenUSD 20.05 reconstructs paths from binary USD files. A specially crafted malformed file can trigger an out of bounds memory modification which can result in remote code execution. To trigger this vulnerability, victim needs to access an attacker-provided malformed file.

Frequently asked questions

What is CVE-2020-13520?: An out of bounds memory corruption vulnerability exists in the way Pixar OpenUSD 20.05 reconstructs paths from binary USD files. A specially crafted malformed file can trigger an out of bounds memory modification which can result in remote code execution. To trigger this vulnerability, victim needs to access an attacker-provided malformed file.
How severe is CVE-2020-13520?: CVE-2020-13520 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13520?: CVE-2020-13520 primarily affects Pixar Openusd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-13520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-13520 published?: CVE-2020-13520 was published on 2020-12-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:pixar:openusd:20.05:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

More vulnerabilities in Pixar Openusd

CVE-2020-13531 — High (CVSS 8.8): A use-after-free vulnerability exists in a way Pixar OpenUSD 20.08 processes reference paths textual USD files. A…
CVE-2020-13493 — High (CVSS 7.8): A heap overflow vulnerability exists in Pixar OpenUSD 20.05 when the software parses compressed sections in binary USD…
CVE-2020-6156 — High (CVSS 7.8): A heap overflow vulnerability exists in Pixar OpenUSD 20.05 when the software parses compressed sections in binary USD…
CVE-2020-6155 — High (CVSS 7.8): A heap overflow vulnerability exists in the Pixar OpenUSD 20.05 while parsing compressed value rep arrays in binary USD…
CVE-2020-6150 — High (CVSS 7.8): A heap overflow vulnerability exists in Pixar OpenUSD 20.05 when the software USDC file format SPECS section…
CVE-2020-6149 — High (CVSS 7.8): A heap overflow vulnerability exists in Pixar OpenUSD 20.05 when the software parses compressed sections in binary USD…

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