Skip to main content
HIGH

CVE-2020-35861

CVSS v3

7.5

HIGH

EPSS Score

1.5 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.

Technical details

Published
2020-12-31

Frequently asked questions

What is CVE-2020-35861?

An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.

Is CVE-2020-35861 actively exploited?

Active exploitation of CVE-2020-35861 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-35861?

CVE-2020-35861 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-35861 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

No credit card required · 500 free checks/month · Free API key