High
Suricata is vulnerable to a stack overflow from big content-type
Type: advisorySources: OSV
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-64333
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 11:23 UTC · Revision 1
Source evidence
Suricata is vulnerable to a stack overflow from big content-type
core-osv · Original sourcePublished 26 Nov 2025, 22:57 UTC
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.
osv:CVE-2025-64333
Complete source record
{
"id": "ab083daca411bf2c383d89c0080d115cc6bf14ca49c98e594af833e257c1da7d",
"url": "https://osv.dev/vulnerability/CVE-2025-64333",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Suricata is vulnerable to a stack overflow from big content-type",
"summary": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.",
"evidence": "osv:CVE-2025-64333",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-64333",
"aliases": [
"CVE-2025-64333",
"GHSA-537h-xxmx-v87m"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/oisf/suricata",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "090542709cf620f2053dc03b52ab8aa625dd6eff"
},
{
"introduced": "9956286fb89f9cad9e9f95b99dc751f8666617b7"
},
{
"fixed": "79db7b1ad444c76530c6eac8702c5e01b7c24a56"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.0.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"suricata-7.0.12",
"suricata-8.0.1",
"suricata-8.0.0",
"suricata-7.0.11",
"suricata-7.0.10",
"suricata-7.0.9",
"suricata-7.0.8",
"suricata-7.0.7",
"suricata-7.0.6",
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"suricata-7.0.2",
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"suricata-7.0.0",
"suricata-7.0.0-rc2",
"suricata-7.0.0-rc1",
"suricata-7.0.0-beta1",
"suricata-6.0.1",
"suricata-6.0.0",
"suricata-6.0.0-rc1",
"suricata-6.0.0-beta1",
"suricata-5.0.1",
"suricata-5.0.0",
"suricata-5.0.0-rc1",
"suricata-5.0.0-beta1",
"suricata-4.1.2",
"suricata-4.1.1",
"suricata-4.1.0",
"suricata-4.1.0-rc2",
"suricata-4.1.0-rc1",
"suricata-4.1.0-beta1",
"suricata-4.0.1",
"suricata-4.0.0",
"suricata-4.0.0-rc2",
"suricata-4.0.0-rc1",
"suricata-4.0.0-beta1",
"suricata-3.2.1",
"suricata-3.2",
"suricata-3.2RC1",
"suricata-3.2beta1",
"suricata-3.1.2",
"suricata-3.1.1",
"suricata-3.1",
"suricata-3.0.1",
"suricata-3.1RC1",
"suricata-3.0.1RC1",
"suricata-3.0",
"suricata-3.0RC3",
"suricata-3.0RC2",
"suricata-3.0RC1",
"suricata-2.1beta4",
"suricata-2.1beta3",
"suricata-2.1beta2",
"suricata-2.1beta1",
"suricata-2.0.2",
"suricata-2.0.1",
"suricata-2.0.1rc1",
"suricata-2.0",
"suricata-2.0rc3",
"suricata-2.0rc2",
"suricata-2.0rc1",
"suricata-2.0beta2",
"suricata-2.0beta1",
"suricata-1.4",
"suricata-1.4rc1",
"suricata-1.4beta3",
"suricata-1.4beta2",
"suricata-1.4beta1",
"suricata-1.3.1",
"suricata-1.3",
"suricata-1.3rc1",
"suricata-1.3beta2",
"suricata-1.3beta1",
"suricata-1.2.1",
"suricata-1.2",
"suricata-1.2rc1",
"suricata-1.2beta1",
"suricata-1.1",
"suricata-1.1rc1",
"suricata-1.1beta3",
"suricata-1.1beta2",
"suricata-1.1beta1",
"suricata-1.0.2",
"suricata-1.0.1",
"suricata-1.0.0",
"suricata-0.8.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64333.json"
}
}
],
"modified": "2026-10-28T02:30:34.550657740Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64333.json",
"https://github.com/OISF/suricata/security/advisories/GHSA-537h-xxmx-v87m",
"https://nvd.nist.gov/vuln/detail/CVE-2025-64333"
],
"provider_metadata": {
"cwe_ids": [
"CWE-121"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64333.json"
}
},
"related_cves": [
{
"value": "CVE-2025-64333",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 502011,
"published_at": "2025-11-26T22:57:02.64+00:00"
}