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OpenAdvisories
High RHSA-2026:74441 1 CVE

Red Hat Security Advisory: libpcap security update

Published Oct 2, 2026 · Updated Oct 15, 2026

Ecosystem: Red Hat

Fixed packages 6

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::baseos libpcap 14:1.10.0-4.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::baseos libpcap-debuginfo 14:1.10.0-4.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::baseos libpcap-debugsource 14:1.10.0-4.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb libpcap-debuginfo 14:1.10.0-4.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb libpcap-debugsource 14:1.10.0-4.el9_8.1
Red Hat · RHEL 9 enterprise_linux:9::crb libpcap-devel 14:1.10.0-4.el9_8.1

Vulnerabilities 1

  • High 8.7
    CVE-2026-0799

    OOBR and OOBW in libpcap before 1.10.7

    In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter p…

    The Tcpdump Group libpcap nmap libpcap Debian Ubuntu Azure Linux Alpine

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2529093
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_74441.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-0799
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-0799
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-0799
  • article
    https://github.com/the-tcpdump-group/libpcap/commit/48e8960a7108e9e828f9d7bdc7e97bdab841aec7