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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).
High8.8EPSS 1.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
HTSlib through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
n/a
- affected n/a
References (4)
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/samtools/htslib/pull/1447 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-36403)Record last updated .