CVE-2020-36403
CVSS v3
8.8
HIGH
EPSS Score
1.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
HTSlib through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).
Technical details
- Published
- 2021-07-01
Frequently asked questions
What is CVE-2020-36403?
HTSlib through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).
Is CVE-2020-36403 actively exploited?
Active exploitation of CVE-2020-36403 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-36403?
CVE-2020-36403 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2020-36403 affecting your environment?
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