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suricata — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2025-59147

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 7.0.11 and below, as well as 8.0.0, are vulnerable to detection bypass when crafted traffic sends multiple SYN packets with different sequence numbers within the same flow tuple, which can cause Suricata to fail to pick up the TCP session. In IDS mode this can lead to a detection and logging bypass. In IPS mode this will lead to the flow getting blocked. This issue is fixed in versions 7.0.12 and 8.0.1.

Products
suricata
Affected versions
1:7.0.10-1, 1:7.0.11-1, 1:7.0.11-1~bpo13+1, 1:8.0.0-1~exp1, 1:8.0.0-1~exp2, 1:8.0.0-1~exp4, 1:8.0.0-1~exp5
Fixed versions
1:7.0.10-1+deb13u1, 1:8.0.1-1
CVEs
CVE-2025-59147
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 09:03 UTC · Revision 1

Source evidence

DEBIAN-CVE-2025-59147

core-osv · Original source

Published 1 Oct 2025, 20:18 UTC

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 7.0.11 and below, as well as 8.0.0, are vulnerable to detection bypass when crafted traffic sends multiple SYN packets with different sequence numbers within the same flow tuple, which can cause Suricata to fail to pick up the TCP session. In IDS mode this can lead to a detection and logging bypass. In IPS mode this will lead to the flow getting blocked. This issue is fixed in versions 7.0.12 and 8.0.1.

osv:DEBIAN-CVE-2025-59147

suricata

Fixed versions: 1:7.0.10-1+deb13u1

suricata

Fixed versions: 1:8.0.1-1

Complete source record
{
  "id": "5b7f62697a611b0fbc6de40f9cab356839cd1bfc9a41b9653a676f3b820405a6",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-59147",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2025-59147",
    "summary": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 7.0.11 and below, as well as 8.0.0, are vulnerable to detection bypass when crafted traffic sends multiple SYN packets with different sequence numbers within the same flow tuple, which can cause Suricata to fail to pick up the TCP session. In IDS mode this can lead to a detection and logging bypass. In IPS mode this will lead to the flow getting blocked. This issue is fixed in versions 7.0.12 and 8.0.1.",
    "evidence": "osv:DEBIAN-CVE-2025-59147",
    "products": [
      {
        "name": {
          "value": "suricata",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:7.0.10-1+deb13u1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:7.0.10-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "suricata",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:8.0.1-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:7.0.10-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.0.11-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.0.11-1~bpo13+1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:8.0.0-1~exp1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:8.0.0-1~exp2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:8.0.0-1~exp4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:8.0.0-1~exp5",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2025-59147",
      "aliases": [
        "DEBIAN-CVE-2025-59147"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:7.0.10-1+deb13u1"
                }
              ]
            }
          ],
          "package": {
            "name": "suricata",
            "purl": "pkg:deb/debian/suricata?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1:7.0.10-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59147.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:8.0.1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "suricata",
            "purl": "pkg:deb/debian/suricata?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1:7.0.10-1",
            "1:7.0.11-1",
            "1:7.0.11-1~bpo13+1",
            "1:8.0.0-1~exp1",
            "1:8.0.0-1~exp2",
            "1:8.0.0-1~exp4",
            "1:8.0.0-1~exp5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59147.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-13T09:47:31.296158975Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-59147"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2025-59147"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-59147",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 307569,
  "published_at": "2025-10-01T20:18:38.267+00:00"
}