CVE-2025-33124

Ibm Db2 Merge Backup 12.1.0.0

Published

17 February 2026

Modified

26 February 2026

Patch / advisory

View advisory

CVSS Score v3.1 6.5

Click a component to see what it means

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0024 15th percentile

Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-33124 is a medium-severity Incorrect Calculation of Buffer Size (CWE-131) vulnerability in Ibm Db2 Merge Backup. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 15th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and SI-16 (Memory Protection) — see the control section below for these in your framework.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-207712

Vulnerability Data

IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 could allow an authenticated user to cause the program to crash due to the incorrect calculation of a buffer size.

CWE(s): CWE-131

Related Threats

CVEs Like This One

CVE-2025-33130Same product: Ibm Db2 Merge Backup

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CVE-2024-23622Same vendor: Ibm

CVE-2020-4430Same vendor: Ibm

CVE-2025-27903Same vendor: Ibm

CVE-2024-49818Same vendor: Ibm

CVE-2023-47718Same vendor: Ibm

CVE-2024-49792Same vendor: Ibm

CVE-2025-36185Same vendor: Ibm

Affected Assets

ibm

db2 merge backup

12.1.0.0

Mitigating Controls

Control response

Prevent

Stop it (NIST 800-53)

SI-10 Information Input Validation
SI-16 Memory Protection
SC-5 Denial-of-service Protection

Detect

Catch it (NIST detect / respond)

—

Harden

Shrink the surface (DISA STIG)

—

Validate

Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

prevent

Directly requires validation of buffer-size-related inputs to prevent the incorrect calculation described in CWE-131 that leads to the crash.

SI-16 Memory Protection good match

prevent

Enforces memory-protection mechanisms that can contain or block exploitation of the buffer-size miscalculation before it causes a process crash.

SC-5 Denial-of-service Protection partial match

prevent

Limits the impact of resource-exhaustion or crash conditions triggered by the authenticated-user buffer flaw, reducing denial-of-service effects.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match

prevents

Secure SDLC practices directly prevent buffer-size miscalculations via coding standards, reviews, and testing, while fixing this single weakness only partially fulfills the broader control.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match

degrades

Secure coding standards directly require correct buffer-size calculations.

A.8.29 Security testing in development and acceptance mostly match

detects

Security testing can detect buffer-size errors before release.

A.8.25 Secure development life cycle partial match

prevents

Secure development lifecycle mandates size-checking practices that reduce buffer-size miscalculations.

A.8.26 Application security requirements partial match

prevents

Application security requirements can specify buffer-size validation rules.