FreeBSD-EN-26:27.tcp Errata Notice

{
  "id": "05250b597467d56aaf15cc7b2158efccd0346c54e635550b0e9e503a856b2d97",
  "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-26:27.tcp.asc",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "FreeBSD-EN-26:27.tcp Errata Notice",
    "summary": "A TCP timer precision overflow can delay or prevent timers from firing, potentially leaving connections in the connection table and consuming resources. The issue affects connections using the default FreeBSD TCP stack; update to a corrected supported branch and reboot.",
    "evidence": "The per-connection callout may be scheduled with an invalid precision, causing TCP timers to run far later than intended.",
    "products": [
      {
        "name": {
          "value": "FreeBSD",
          "evidence": "Affects: FreeBSD 15.1 and 14.4"
        },
        "prerequisites": [
          {
            "value": "Only connections using the default FreeBSD TCP stack are affected.",
            "evidence": "Only connections using the default FreeBSD TCP stack are affected."
          }
        ],
        "fixed_versions": [
          {
            "value": "15.1-RELEASE-p5",
            "evidence": "2026-10-14 16:04:33 UTC (releng/15.1, 15.1-RELEASE-p5)"
          },
          {
            "value": "14.4-RELEASE-p11",
            "evidence": "2026-10-14 16:03:51 UTC (releng/14.4, 14.4-RELEASE-p11)"
          }
        ],
        "affected_versions": [
          {
            "value": "15.1",
            "evidence": "Affects: FreeBSD 15.1 and 14.4"
          },
          {
            "value": "14.4",
            "evidence": "Affects: FreeBSD 15.1 and 14.4"
          }
        ]
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-freebsd-security",
  "document_id": 23596,
  "published_at": "2026-10-14T00:00:00+00:00"
}