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
Other 2020 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).