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App Connect Enterprise EUVDEUVD-2026-77786

| CVE-2026-17133 HIGH
OS Command Injection (CWE-78)
2026-09-14 ibm GHSA-gghq-hpvc-v3rx
7.8
CVSS 3.1 · Vendor: ibm
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Local arbitrary code execution affects IBM App Connect Enterprise releases 13.0.1.0 through 13.0.8.0 and 12.0.1.0 through 12.0.12.27, caused by improper neutralization of special elements used in an OS command (CWE-78). Successful exploitation lets a local attacker run commands in the context of the App Connect Enterprise runtime, yielding high confidentiality, integrity, and availability impact (CVSS 3.1 base 7.8, AV:L/AC:L/PR:N/UI:R). IBM has published a fix; CISA SSVC records Exploitation: none and Automatable: no, and no public exploit code or KEV listing was identified at time of analysis.

Affected VersionsENISA

App Connect Enterprise 13.0.1.0 ≤13.0.8.0
App Connect Enterprise 12.0.1.0 ≤12.0.12.27

Affected Packages

euvd app_connect_enterprise no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (ibm) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from Vendor (ibm) · only source for this CVE.

CVSS VectorVendor: ibm

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.0, and 12.0.1.0 through 12.0.12.27 could allow a local attacker to execute arbitrary code due to improper neutralization of special elements used in an OS command.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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Directory traversal in IBM App Connect Enterprise 13.0.1.0-13.0.7.2 and 12.0.1.0-12.0.12.27 lets a remote unauthenticate

CVE-2026-14522 CRITICAL
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Command injection in IBM App Connect Enterprise (versions 12.0.1.0-12.0.12.27 and 13.0.1.0-13.0.7.2) lets a remote attac

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IBM App Connect Enterprise 11.0.0.1 through 11.0.0.24 and 12.0.1.0 through 12.0.11.0 could allow a remote attacker to ob

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Incorrect authorization in IBM App Connect Enterprise (ACE) versions 12.x and 13.x allows a remote authenticated attacke

CVE-2026-17156 HIGH
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Insecure deserialization in IBM App Connect Enterprise releases 13.0.1.0 through 13.0.8.0 and 12.0.1.0 through 12.0.12.2

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Insecure deserialization in IBM App Connect Enterprise (12.0.1.0 through 12.0.12.27 and 13.0.1.0 through 13.0.8.0) allow

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XML external entity injection in the SAP Adapter component of IBM App Connect Enterprise and IBM Integration Bus for z/O

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Arbitrary file read in IBM App Connect Enterprise (versions 13.0.1.0 through 13.0.7.2 and 12.0.1.0 through 12.0.12.27) a

CVE-2026-12947 HIGH
7.5 Jul 30

Local information disclosure in IBM App Connect Enterprise (versions 13.0.1.0-13.0.7.2 and 12.0.1.0-12.0.12.27) occurs b

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7.5 Sep 04

Remote denial-of-service in IBM App Connect Enterprise and IBM Integration Bus for z/OS allows unauthenticated network a

CVE-2026-17443 MEDIUM
6.5 Sep 04

XML external entity injection in IBM App Connect Enterprise (versions 12.0.1.0-12.0.12.28 and 13.0.1.0-13.0.8.1) and IBM

CVE-2026-17444 MEDIUM
6.5 Sep 04

XML External Entity (XXE) injection in IBM App Connect Enterprise and IBM Integration Bus for z/OS enables authenticated

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