Adminer 4.8.1 Monolog memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Adminer 4.8.1. This vulnerability affects unknown code of the component Monolog. Executing a manipulation can lead to memory allocation. This vulnerability is registered as CVE-2025-43960. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Adminer 4.8.1. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Monolog. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability. CVE summarizes:

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.

This vulnerability was named CVE-2025-43960 since 04/20/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/20/2025 CVE reserved
08/25/2025 +127 days Advisory disclosed
08/25/2025 +0 days VulDB entry created
09/13/2025 +18 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2025-43960 (🔒)
GCVE (CVE): GCVE-0-2025-43960
GCVE (VulDB): GCVE-100-321280

Entryinfo

Created: 08/25/2025 15:50
Updated: 09/13/2025 00:18
Changes: 08/25/2025 15:50 (51), 09/13/2025 00:18 (1)
Complete: 🔍
Cache ID: 216::103

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