Medium
tcpreplay — security advisory
A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: "Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3."
- Products
- tcpreplay
- Affected versions
- 3.4.4-2, 3.4.4-2+deb8u1build0.16.04.1, 3.4.4-2+deb8u1ubuntu0.1~esm1, 3.4.4-2+deb8u1ubuntu0.1~esm2, 3.4.4-2+deb8u1ubuntu0.1~esm3, 4.2.6-1, 4.2.6-1ubuntu0.1~esm1, 4.2.6-1ubuntu0.1~esm2, 4.2.6-1ubuntu0.1~esm3, 4.2.6-1ubuntu0.1~esm4, 4.2.6-1ubuntu0.1~esm5, 4.3.2-1build1, 4.3.2-1ubuntu0.1~esm1, 4.3.2-1ubuntu0.1~esm2, 4.3.2-1ubuntu0.1~esm3, 4.3.3-2, 4.3.4-1, 4.3.4-1ubuntu0.1~esm1, 4.3.4-1ubuntu0.1~esm2, 4.4.3-1, 4.4.4-1, 4.4.4-1build1, 4.4.4-1build2, 4.4.4-1ubuntu0.1~esm1, 4.5.1-1, 4.5.2-1, 4.5.2-1build1, 4.5.4-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-9649
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:52 UTC · Revision 1
Source evidence
A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: "Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3."
osv:UBUNTU-CVE-2025-9649
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
tcpreplay
Fixed versions: Not specified
Complete source record
{
"id": "cfca46ef33274420b8a7b135a58c55c65c4eefc7c3bc6bf09b5d38f99bc9bb25",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-9649",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-9649",
"summary": "A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: \"Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3.\"",
"evidence": "osv:UBUNTU-CVE-2025-9649",
"products": [
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.4.4-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.4-2+deb8u1build0.16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.4-2+deb8u1ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.4-2+deb8u1ubuntu0.1~esm2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.4-2+deb8u1ubuntu0.1~esm3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2.6-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.2.6-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
},
{
"value": "4.2.6-1ubuntu0.1~esm2",
"evidence": "/affected/1/versions"
},
{
"value": "4.2.6-1ubuntu0.1~esm3",
"evidence": "/affected/1/versions"
},
{
"value": "4.2.6-1ubuntu0.1~esm4",
"evidence": "/affected/1/versions"
},
{
"value": "4.2.6-1ubuntu0.1~esm5",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.3.2-1build1",
"evidence": "/affected/2/versions"
},
{
"value": "4.3.2-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
},
{
"value": "4.3.2-1ubuntu0.1~esm2",
"evidence": "/affected/2/versions"
},
{
"value": "4.3.2-1ubuntu0.1~esm3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.3.3-2",
"evidence": "/affected/3/versions"
},
{
"value": "4.3.4-1",
"evidence": "/affected/3/versions"
},
{
"value": "4.3.4-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
},
{
"value": "4.3.4-1ubuntu0.1~esm2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.3-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.4.4-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.4.4-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "4.4.4-1build2",
"evidence": "/affected/4/versions"
},
{
"value": "4.4.4-1ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.5.1-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.5.2-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.5.2-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "4.5.4-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "tcpreplay",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.5.2-1",
"evidence": "/affected/7/versions"
},
{
"value": "4.5.2-1build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-9649",
"aliases": [
"UBUNTU-CVE-2025-9649"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"3.4.4-2",
"3.4.4-2+deb8u1build0.16.04.1",
"3.4.4-2+deb8u1ubuntu0.1~esm1",
"3.4.4-2+deb8u1ubuntu0.1~esm2",
"3.4.4-2+deb8u1ubuntu0.1~esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "3.4.4-2+deb8u1ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"4.2.6-1",
"4.2.6-1ubuntu0.1~esm1",
"4.2.6-1ubuntu0.1~esm2",
"4.2.6-1ubuntu0.1~esm3",
"4.2.6-1ubuntu0.1~esm4",
"4.2.6-1ubuntu0.1~esm5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.2.6-1ubuntu0.1~esm5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"4.3.2-1build1",
"4.3.2-1ubuntu0.1~esm1",
"4.3.2-1ubuntu0.1~esm2",
"4.3.2-1ubuntu0.1~esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.3.2-1ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"4.3.3-2",
"4.3.4-1",
"4.3.4-1ubuntu0.1~esm1",
"4.3.4-1ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.3.4-1ubuntu0.1~esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"4.4.3-1",
"4.4.4-1",
"4.4.4-1build1",
"4.4.4-1build2",
"4.4.4-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.4.4-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"4.5.1-1",
"4.5.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.5.2-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"4.5.2-1build1",
"4.5.4-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.5.4-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tcpreplay",
"purl": "pkg:deb/ubuntu/tcpreplay?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"4.5.2-1",
"4.5.2-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9649.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tcpreplay",
"binary_version": "4.5.2-1build1"
}
]
}
}
],
"modified": "2026-10-17T12:59:40.225931044Z",
"provider": "osv",
"upstream": [
"CVE-2025-9649"
],
"references": [
"https://ubuntu.com/security/CVE-2025-9649",
"https://www.cve.org/CVERecord?id=CVE-2025-9649",
"https://drive.google.com/file/d/16QQtZvUrMbF-i_1cGt5hNWmkn-YVyBOM/view?usp=sharing",
"https://github.com/appneta/tcpreplay/issues/968",
"https://github.com/appneta/tcpreplay/issues/968#issuecomment-3226338070",
"https://vuldb.com/?ctiid.321855",
"https://vuldb.com/?id.321855",
"https://vuldb.com/?submit.630493",
"https://vuldb.com/?submit.630494"
]
},
"related_cves": [
{
"value": "CVE-2025-9649",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 359703,
"published_at": "2025-08-29T14:15:00+00:00"
}