CVE-2020-36470Public exploitNetwork attack vector

Memory corruption via unsound RingBuffer thread sharing

Published Aug 8, 2021 · Updated Aug 4, 2024

Data race in the disrustor crate before 0.3.0 allows attackers to trigger undefined behavior through concurrent RingBuffer access. RingBuffer retrieves mutable references from DataProvider non-atomically and implements Send and Sync for every T, permitting aliased mutable references across threads. A consuming Rust program must expose concurrent access; successful triggering can corrupt memory or crash the process.

CVSS severity5.9
Medium
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data race in the disrustor crate before 0.3.0 allows attackers to trigger undefined behavior through concurrent RingBuffer access. RingBuffer retrieves mutable references from DataProvider non-atomically and implements Send and Sync for every T, permitting aliased mutable references across threads. A consuming Rust program must expose concurrent access; successful triggering can corrupt memory or crash the process.

The record

CVE
CVE-2020-36470
Published
Aug 8, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 8, 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

5.9RustSecCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 exploitPublished

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Public exploit references

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Technologies

Your stack

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Your stack

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