CVE-2021-39537
CVSS v3
8.8
HIGH
EPSS Score
3.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.
Technical details
- Published
- 2021-09-20
Frequently asked questions
What is CVE-2021-39537?
An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.
Is CVE-2021-39537 actively exploited?
Active exploitation of CVE-2021-39537 has not been confirmed. Its EPSS score was 3.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-39537?
CVE-2021-39537 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-39537 affecting your environment?
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