ubuntu-cve-2025-49643
Vulnerability from osv_ubuntu
Published
2025-12-01 14:16
Modified
2026-05-20 15:22
Summary
Details
An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.
Severity
6.5 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:2.2.2+dfsg-1ubuntu1+esm5"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:2.2.2+dfsg-1ubuntu1+esm5?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:2.0.6+dfsg-1ubuntu2",
"1:2.2.0+dfsg-1ubuntu1",
"1:2.2.0+dfsg-6ubuntu1",
"1:2.2.1+dfsg-1ubuntu3",
"1:2.2.2+dfsg-1ubuntu1",
"1:2.2.2+dfsg-1ubuntu1+esm1",
"1:2.2.2+dfsg-1ubuntu1+esm3",
"1:2.2.2+dfsg-1ubuntu1+esm4",
"1:2.2.2+dfsg-1ubuntu1+esm5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:2.4.7+dfsg-2ubuntu2.1+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:2.4.7+dfsg-2ubuntu2.1+esm4?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:2.4.6+dfsg-1",
"1:2.4.7+dfsg-1",
"1:2.4.7+dfsg-2",
"1:2.4.7+dfsg-2ubuntu2",
"1:2.4.7+dfsg-2ubuntu2.1",
"1:2.4.7+dfsg-2ubuntu2.1+esm1",
"1:2.4.7+dfsg-2ubuntu2.1+esm2",
"1:2.4.7+dfsg-2ubuntu2.1+esm3",
"1:2.4.7+dfsg-2ubuntu2.1+esm4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:3.0.12+dfsg-1ubuntu0.1~esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:3.0.12+dfsg-1ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:3.0.7+dfsg-3",
"1:3.0.12+dfsg-1",
"1:3.0.12+dfsg-1ubuntu0.1~esm1",
"1:3.0.12+dfsg-1ubuntu0.1~esm2",
"1:3.0.12+dfsg-1ubuntu0.1~esm3",
"1:3.0.12+dfsg-1ubuntu0.1~esm4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:4.0.17+dfsg-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:4.0.17+dfsg-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:4.0.4+dfsg-1build2",
"1:4.0.4+dfsg-1build3",
"1:4.0.11+dfsg-1",
"1:4.0.14+dfsg-1",
"1:4.0.15+dfsg-1",
"1:4.0.16+dfsg-1",
"1:4.0.16+dfsg-1build1",
"1:4.0.17+dfsg-1",
"1:4.0.17+dfsg-1ubuntu0.1~esm1",
"1:4.0.17+dfsg-1ubuntu0.1~esm2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:5.0.17+dfsg-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:5.0.17+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:5.0.8+dfsg-1build1",
"1:5.0.14+dfsg-1",
"1:5.0.17+dfsg-1",
"1:5.0.17+dfsg-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-agent2",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-sender",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:7.0.10+dfsg-2build1"
},
{
"binary_name": "zabbix-web-service",
"binary_version": "1:7.0.10+dfsg-2build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:7.0.10+dfsg-2build1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:7.0.10+dfsg-2",
"1:7.0.10+dfsg-2build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "zabbix-agent",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-agent2",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-frontend-php",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-java-gateway",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-proxy-mysql",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-proxy-pgsql",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-proxy-sqlite3",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-sender",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-server-mysql",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-server-pgsql",
"binary_version": "1:7.0.22+dfsg-1"
},
{
"binary_name": "zabbix-web-service",
"binary_version": "1:7.0.22+dfsg-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "zabbix",
"purl": "pkg:deb/ubuntu/zabbix@1:7.0.22+dfsg-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:7.0.10+dfsg-2build1",
"1:7.0.22+dfsg-1"
]
}
],
"aliases": [],
"details": "An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.",
"id": "UBUNTU-CVE-2025-49643",
"modified": "2026-05-20T15:22:53Z",
"published": "2025-12-01T14:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-49643"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-49643"
},
{
"type": "REPORT",
"url": "https://support.zabbix.com/browse/ZBX-27284"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-49643"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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