IBM DB2/DB2 Connect Server up to 11.5.9/12.1.1 Automatic Client Rerouting allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in IBM DB2 and DB2 Connect Server up to 11.5.9/12.1.1. Affected by this vulnerability is an unknown functionality of the component Automatic Client Rerouting. This manipulation causes allocation of resources. The identification of this vulnerability is CVE-2025-1000. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in IBM DB2 and DB2 Connect Server up to 11.5.9/12.1.1. Affected by this vulnerability is an unknown code of the component Automatic Client Rerouting. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5.0 through 11.5.9 and 12.1.0 through 12.1.1 could allow an authenticated user to cause a denial of service when connecting to a z/OS database due to improper handling of automatic client rerouting.

The advisory is shared at ibm.com. This vulnerability is known as CVE-2025-1000 since 02/03/2025. The exploitation appears to be difficult. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 235819 (IBM DB2 Multiple Vulnerabilities (7232529, 7232528) (Windows)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (235819) and CERT Bund (WID-SEC-2025-0938). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • HCL Commerce
  • IBM DB2
  • IBM Tivoli Key Lifecycle Manager

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

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

CNA Base Score: 5.3
CNA Vector (ibm): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / 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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Nessus ID: 235819
Nessus Name: IBM DB2 Multiple Vulnerabilities (7232529, 7232528) (Windows)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/03/2025 🔍
05/06/2025 +91 days 🔍
05/06/2025 +0 days 🔍
01/23/2026 +262 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Status: Confirmed

CVE: CVE-2025-1000 (🔍)
GCVE (CVE): GCVE-0-2025-1000
GCVE (VulDB): GCVE-100-307549
CERT Bund: WID-SEC-2025-0938 - IBM DB2: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 05/06/2025 07:13
Updated: 01/23/2026 16:38
Changes: 05/06/2025 07:13 (63), 05/13/2025 19:11 (2), 01/23/2026 16:38 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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