CVE-2020-36134Network attack vector

Application crash via AVX2 out-of-bounds read

Published Dec 2, 2021 · Updated Aug 4, 2024

Out-of-bounds read in AOM 2.0.1 allows remote attackers to crash an application during AV1 media processing after user interaction. The AVX2 OBMC SAD implementation reads outside the intended buffer and faults in aom_dsp/x86/obmc_sad_avx2.c. Reaching the faulty x86 AVX2 path requires user interaction; the documented consequence is a crash without confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability1.11%
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 AOM 2.0.1 allows remote attackers to crash an application during AV1 media processing after user interaction. The AVX2 OBMC SAD implementation reads outside the intended buffer and faults in aom_dsp/x86/obmc_sad_avx2.c. Reaching the faulty x86 AVX2 path requires user interaction; the documented consequence is a crash without confidentiality or integrity impact.

The record

CVE
CVE-2020-36134
Published
Dec 2, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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