CVE-2019-4424

IBM Business Automation Workflow 18.0.0.0, 18.0.0.1, 18.0.0.2, 19.0.0.1, and 19.0.0.2 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 162770.

Published: 2019-08-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-4424 is rated Moderate Risk (51.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.37%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-4424

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.84% 0.37% -0.47%
2 2025-03-29 0.37% 0.84% +0.47%
3 2025-03-17 — 0.37% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-4424

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 4.2 [email protected]
7.1 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 4.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2019-4424

Affected software / configurations for CVE-2019-4424

Vendor Product Version Raw CPE
ibm business_automation_workflow >= 18.0.0.0, <= 19.0.0.2 cpe:2.3:a:ibm:business_automation_workflow:*:*:*:*:*:*:*:*
ibm business_process_manager >= 7.5.0.0, <= 7.5.1.2 cpe:2.3:a:ibm:business_process_manager:*:*:*:*:*:*:*:*
ibm business_process_manager >= 8.0.0.0, <= 8.0.1.3 cpe:2.3:a:ibm:business_process_manager:*:*:*:*:*:*:*:*
ibm business_process_manager >= 8.5.0.0, <= 8.5.0.2 cpe:2.3:a:ibm:business_process_manager:*:*:*:*:*:*:*:*
ibm business_process_manager 8.5.5.0 cpe:2.3:a:ibm:business_process_manager:8.5.5.0:*:*:*:*:*:*:*
ibm business_process_manager 8.5.6.0 cpe:2.3:a:ibm:business_process_manager:8.5.6.0:-:*:*:*:*:*:*
ibm business_process_manager 8.5.6.0 cpe:2.3:a:ibm:business_process_manager:8.5.6.0:cf01:*:*:*:*:*:*
ibm business_process_manager 8.5.6.0 cpe:2.3:a:ibm:business_process_manager:8.5.6.0:cf02:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:-:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:cf2016.06:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:cf2016.09:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:cf2016.12:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:cf2017.03:*:*:*:*:*:*
ibm business_process_manager 8.5.7.0 cpe:2.3:a:ibm:business_process_manager:8.5.7.0:cf2017.06:*:*:*:*:*:*
ibm business_process_manager 8.6.0.0 cpe:2.3:a:ibm:business_process_manager:8.6.0.0:-:*:*:-:*:*:*
ibm business_process_manager 8.6.0.0 cpe:2.3:a:ibm:business_process_manager:8.6.0.0:cf2017.12:*:*:-:*:*:*
ibm business_process_manager 8.6.0.0 cpe:2.3:a:ibm:business_process_manager:8.6.0.0:cf2018.03:*:*:-:*:*:*

References for CVE-2019-4424

cvelogic Threat Intelligence