IBM DB2/DB2 Connect Server up to 11.5.9/12.1.1 Query memory allocation

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

Summaryinfo

A vulnerability classified as problematic has been found in IBM DB2 and DB2 Connect Server up to 11.5.9/12.1.1. Affected by this issue is some unknown functionality of the component Query Handler. Performing a manipulation results in memory allocation. This vulnerability is known as CVE-2025-2518. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in IBM DB2 and DB2 Connect Server up to 11.5.9/12.1.1. This affects some unknown processing of the component Query Handler. The manipulation with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on 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 is vulnerable to a denial of service as the server may crash under certain conditions with a specially crafted query.

It is possible to read the advisory at ibm.com. This vulnerability is uniquely identified as CVE-2025-2518 since 03/19/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 241515 (IBM DB2 DoS (7235072/7235073) (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 (241515), EUVD (EUVD-2025-16412) and CERT Bund (WID-SEC-2025-1167). Be aware that VulDB is the high quality source for vulnerability data.

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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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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Nessus ID: 241515
Nessus Name: IBM DB2 DoS (7235072/7235073) (Windows)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/19/2025 🔍
05/30/2025 +71 days 🔍
05/30/2025 +0 days 🔍
01/23/2026 +238 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Status: Confirmed

CVE: CVE-2025-2518 (🔍)
GCVE (CVE): GCVE-0-2025-2518
GCVE (VulDB): GCVE-100-310575
EUVD: 🔍
CERT Bund: WID-SEC-2025-1167 - IBM DB2: Mehrere Schwachstellen

Entryinfo

Created: 05/30/2025 05:46
Updated: 01/23/2026 15:33
Changes: 05/30/2025 05:46 (64), 07/09/2025 01:24 (2), 08/26/2025 18:13 (1), 01/23/2026 15:33 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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