What is the CVSS score of CVE-2026-17416?

CVE-2026-17416 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Is there a patch available for CVE-2026-17416?

Yes, a patch is available for CVE-2026-17416. Update the affected software to the latest version immediately.

App Connect Enterprise CVE-2026-17416

EUVD-2026-77783 HIGH

Deserialization of Untrusted Data (CWE-502)

2026-09-14 ibm

GHSA-rhcw-26r2-6fcg

RCE Deserialization IBM App Connect Enterprise

7.8

CVSS 3.1 · Vendor: ibm

View

Vulnerability Assessment

Weakness

CWE

CWE-502

OWASP Top 10:2025

A08:2025 - Software or Data Integrity Failures

ASVS 5.0

V1 - Encoding and Sanitization Safe deserialization, type allowlists

MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

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

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) allows a local attacker to execute arbitrary code with the privileges of the affected runtime, provided the attacker can get a user or process to handle crafted serialized content. CVSS 3.1 scores this 7.8 (AV:L/AC:L/PR:N/UI:R, C/I/A all High), and CWE-502 identifies the root cause as untrusted deserialization. No public exploit code has been identified and CISA's SSVC assessment records exploitation status 'none' with automatable 'no'; IBM has published a vendor fix referenced in its support advisory.

Affected VersionsENISA

App Connect Enterprise 12.0.1.0 ≤12.0.12.27

App Connect Enterprise 13.0.1.0 ≤13.0.8.0

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 insecure deserialization.

Threat Intelligence Overview

EPSS Score

0.1%

Top 96% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

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

Human Impact· derived

Medium

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Insecure Deserialization CRITICAL

Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.

Remote Code Execution CRITICAL

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