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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).

    Published:Jul 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 1, 2021
    EPSS Score:0.00513
    CVSS Score:8.8

    Affected Products

    Vendor
    Htslib
    Product
    Htslib
    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097https://github.com/samtools/htslib/pull/1447https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097https://github.com/samtools/htslib/pull/1447

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-31971 (CVSS 7.1) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31970 (CVSS 7.1) — HTSlib is a library for reading and writing bioinformatics file formats. GZI files are used to index block-com…
    CVE-2026-31969 (CVSS 7.1) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31968 (CVSS 8.8) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31967 (CVSS 6.9) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31966 (CVSS 6.9) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31965 (CVSS 6.9) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31964 (CVSS 6.9) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31963 (CVSS 8.8) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…
    CVE-2026-31962 (CVSS 8.8) — HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which sto…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High