CVE-2020-35875

CVE-2020-35875 is a high-severity vulnerability in Tokio Tokio-rustls with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

An issue was discovered in the tokio-rustls crate before 0.13.1 for Rust. Excessive memory usage may occur when data arrives quickly.

Frequently asked questions

What is CVE-2020-35875?
An issue was discovered in the tokio-rustls crate before 0.13.1 for Rust. Excessive memory usage may occur when data arrives quickly.
How severe is CVE-2020-35875?
CVE-2020-35875 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-35875 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35875?
CVE-2020-35875 affects Tokio Tokio-rustls. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35875?
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-2020-35875 published?
CVE-2020-35875 was published on 2020-12-31 and last updated on 2026-06-17.

References

Affected products (1)