CVE-2020-13495Public exploitNetwork attack vector

Information disclosure via unchecked binary file offsets

Published Apr 18, 2022 · Updated Apr 15, 2025

Out-of-bounds read in Pixar Animation Studios OpenUSD 20.05 allows attackers to disclose process memory via a crafted binary USD file. CrateFile::_ReadTOC and section readers pass attacker-controlled 64-bit file offsets directly to Reader::Seek without checking mapped-file bounds. A victim must access the file; on macOS, thumbnail generation can invoke the parser, exposing layout data that can weaken ASLR.

CVSS severity4.3
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Pixar Animation Studios OpenUSD 20.05 allows attackers to disclose process memory via a crafted binary USD file. CrateFile::_ReadTOC and section readers pass attacker-controlled 64-bit file offsets directly to Reader::Seek without checking mapped-file bounds. A victim must access the file; on macOS, thumbnail generation can invoke the parser, exposing layout data that can weaken ASLR.

The record

CVE
CVE-2020-13495
Published
Apr 18, 2022
Updated
Apr 15, 2025
Vendor
Pixar Animation Studios
Product
OpenUSD
Classifications
CWE-119, CWE-787, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=20.05

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pixar Animation Studios · OpenUSDversion=20.05
Apple · macOSversion=Catalina 10.15.3

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
4.3Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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