How severe is CVE-2020-36446?

CVE-2020-36446 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-36446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36446?

CVE-2020-36446 affects Signal-simple Project Signal-simple. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36446?

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-2020-36446 published?

CVE-2020-36446 was published on 2021-08-08 and last updated on 2026-06-17.

CVE-2020-36446

CVE-2020-36446 is a high-severity vulnerability in Signal-simple Project Signal-simple with a CVSS 3.x base score of 8.1. 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-362.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Signal-simple Project Signal-simple
Published: 2021-08-08
Last modified: 2026-06-17

Description

An issue was discovered in the signal-simple crate through 2020-11-15 for Rust. There are unconditional implementations of Send and Sync for SyncChannel<T>.

Frequently asked questions

What is CVE-2020-36446?: An issue was discovered in the signal-simple crate through 2020-11-15 for Rust. There are unconditional implementations of Send and Sync for SyncChannel<T>.
How severe is CVE-2020-36446?: CVE-2020-36446 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-36446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36446?: CVE-2020-36446 affects Signal-simple Project Signal-simple. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36446?: 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-2020-36446 published?: CVE-2020-36446 was published on 2021-08-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:signal-simple_project:signal-simple:*:*:*:*:*:rust:*:*

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