CVE-2026-10109Network attack vector

Pre-auth code execution via improper DRDA handshake

Published Jun 30, 2026 · Updated Jun 30, 2026

Code injection in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 allows remote attackers to execute code via DRDA. The pre-authentication DRDA handshake handler processes crafted handshake data in a way that enables code injection; IBM has withheld the affected routine and replication details. No credentials or user interaction are required, and successful exploitation can fully compromise the database server.

CVSS severity9.8
Critical
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 allows remote attackers to execute code via DRDA. The pre-authentication DRDA handshake handler processes crafted handshake data in a way that enables code injection; IBM has withheld the affected routine and replication details. No credentials or user interaction are required, and successful exploitation can fully compromise the database server.

The record

CVE
CVE-2026-10109
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
OpenBMC Project
Product
Db2
Classifications
CWE-94, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 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 <=12.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · Db2version=11.5.0 <=11.5.9; version=12.1.0 <=12.1.4

Published CVSS scores

9.8IBM CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1210Exploitation of Remote Services

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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