Cyber Resilience

CVE-2025-36070

MediumDDoS

Published: 30 January 2026

Published
30 January 2026
Modified
05 February 2026
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0004 13.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-36070 is a medium-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Ibm Db2. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 13.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-36070 is a denial-of-service vulnerability (CWE-770) in IBM Db2 for Linux, UNIX, and Windows, including Db2 Connect Server, affecting versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3. The issue occurs when a trap is triggered during SELECT operations on certain types of tables, with a CVSS v3.1 base score of 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

An authenticated attacker with low privileges can exploit this vulnerability remotely over the network with low complexity and no user interaction. Exploitation triggers a trap that results in high-impact denial of service by disrupting database availability, without compromising confidentiality or integrity.

IBM provides details on mitigation, including available patches, in their security advisory at https://www.ibm.com/support/pages/node/7257624.

EU & UK References

Vulnerability details

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 is vulnerable to a denial of service as a trap may occur when selecting from certain types of tables.

CWE(s)
CWE-770

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

DoS via trap on SELECT directly matches application exploitation for endpoint denial of service.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2025-36442Same product: Ibm Db2
CVE-2025-36247Same product: Ibm Db2
CVE-2025-36384Same product: Ibm Db2
CVE-2025-36365Same product: Ibm Db2
CVE-2025-36184Same product: Ibm Db2
CVE-2026-1376Same vendor: Ibm
CVE-2024-41742Same vendor: Ibm
CVE-2024-45662Same vendor: Ibm
CVE-2025-1403Same vendor: Ibm
CVE-2026-1718Same product: Ibm Db2

Affected Assets

ibm
db2
11.5.0 — 11.5.9 · 11.5.0 — 11.5.9 · 11.5.0 — 11.5.9

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly addresses the root cause by requiring timely application of the vendor patches IBM provides for the trap in SELECT processing.

SC-5 Denial-of-service Protection good match
prevent

Implements protections against resource-exhaustion and trap-induced denial of service that this CVE exploits via crafted table SELECTs.

SI-11 Error Handling partial match
prevent

Ensures graceful error handling for unexpected traps instead of allowing the database process to crash and cause full DoS.

References