CVE-2025-33130Network attack vector

Authenticated crash via stack buffer overwrite

Published Feb 17, 2026 · Updated Feb 17, 2026

Stack buffer overflow in IBM Db2 Merge Backup 12.1.0.0 allows remote authenticated users to crash the program via network input. IBM discloses that the program overwrites a stack-allocated buffer, but it does not identify the affected command, parser, field, or copy operation. Low-privileged authenticated access is required; the documented consequence is a process crash with no reported confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in IBM Db2 Merge Backup 12.1.0.0 allows remote authenticated users to crash the program via network input. IBM discloses that the program overwrites a stack-allocated buffer, but it does not identify the affected command, parser, field, or copy operation. Low-privileged authenticated access is required; the documented consequence is a process crash with no reported confidentiality or integrity impact.

The record

CVE
CVE-2025-33130
Published
Feb 17, 2026
Updated
Feb 17, 2026
Vendor
IBM
Product
Db2 Merge Backup
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 17, 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=12.1.0.0 <=2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Db2 Merge Backupversion=12.1.0.0 <=2.1.0

Published CVSS scores

6.5IBMCVSS:3.1/AV:N/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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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