ubuntu-cve-2025-43960
Vulnerability from osv_ubuntu
Published
2025-08-25 14:15
Modified
2026-05-20 15:22
Summary
Details
Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.
Severity
8.6 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.2.1-1ubuntu1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@4.2.1-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.2.1-1",
"4.2.1-1ubuntu1",
"4.2.1-1ubuntu1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.6.2-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@4.6.2-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.3.1-2",
"4.5.0-1",
"4.6.1-1",
"4.6.2-1",
"4.6.2-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.7.6-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@4.7.6-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.7.2-1",
"4.7.4-1",
"4.7.5-1",
"4.7.6-1",
"4.7.6-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.8.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@4.8.1-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.7.9-2",
"4.8.1-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.8.1-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@4.8.1-2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.8.1-1",
"4.8.1-1ubuntu1",
"4.8.1-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "5.2.1+dfsg-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@5.2.1+dfsg-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.8.1-4",
"5.2.1+dfsg-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "5.4.1+dfsg-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer@5.4.1+dfsg-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.2.1+dfsg-1",
"5.3.0+dfsg-1",
"5.4.0+dfsg-1",
"5.4.1+dfsg-1"
]
}
],
"aliases": [],
"details": "Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer\u2019s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.",
"id": "UBUNTU-CVE-2025-43960",
"modified": "2026-05-20T15:22:52Z",
"published": "2025-08-25T14:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-43960"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-43960"
},
{
"type": "REPORT",
"url": "https://github.com/Seldaek/monolog"
},
{
"type": "REPORT",
"url": "https://github.com/far00t01/CVE-2025-43960"
},
{
"type": "REPORT",
"url": "https://github.com/vrana/adminer/compare/v4.8.1...v4.8.2"
},
{
"type": "REPORT",
"url": "https://www.adminer.org"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-43960"
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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