CVE-2025-36353

Local service interruption via crafted query

Published Jan 30, 2026 · Updated Jan 30, 2026

Denial of service in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 allows local users to interrupt service via a crafted query. Db2 fails to neutralize special elements in query logic, but IBM has not disclosed the affected function or exact failing operation. Local query access is required; exploitation affects availability on Unix and Windows, while IBM states that Linux is not affected.

CVSS severity6.2
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 allows local users to interrupt service via a crafted query. Db2 fails to neutralize special elements in query logic, but IBM has not disclosed the affected function or exact failing operation. Local query access is required; exploitation affects availability on Unix and Windows, while IBM states that Linux is not affected.

The record

CVE
CVE-2025-36353
Published
Jan 30, 2026
Updated
Jan 30, 2026
Vendor
IBM
Product
IBM Db2 for Linux, UNIX, and Windows
Classifications
CWE-943, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.5.0 <=11.5.9
  2. Affected versionversion=12.1.0 <=12.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Db2 for Linux, UNIX, and Windowsversion=11.5.0 <=11.5.9; version=12.1.0 <=12.1.3

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.2IBMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-943Improper Neutralization of Special Elements in Data Query Logic
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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