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CVE-2025-36122

IBM® Db2® is vulnerable to a denial of service with a specially crafted query when stmtheap is set to automatic

MEDIUM
6.5
CVSS Score
Published: April 30, 2026 at 09:48 PM UTC
Updated: October 7, 2026 at 09:10 AM UTC
1 product affected across 1 vendorDB2

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service using a specially crafted SQL query due to improper allocation of system resources.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

DB2· IBM
95%
11.5.0 ≤ v ≤ 11.5.912.1.0 ≤ v ≤ 12.1.311.5.011.5.912.1.012.1.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7267642

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMibm
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

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