CVE-2018-18591 | MFSBGN03823 rev.1 - Micro Focus Service Manager, unauthorized disclosure of data

A potential unauthorized disclosure of data vulnerability has been identified in Micro Focus Service Manager versions: 9.30, 9.31, 9.32, 9.33, 9.34, 9.35, 9.40, 9.41, 9.50, 9.51. The vulnerability could be exploited to release unauthorized disclosure of data.

Published: 2018-11-13 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-18591 is rated Moderate Risk (48.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.00%). 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-2018-18591

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 2026-06-15 0.21% 1.00% +0.79%
2 2025-03-30 0.45% 0.21% -0.23%
3 2025-03-29 — 0.45% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-18591

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N 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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
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:N)
Service keeps running; no real outage angle.
 2.3 4.0 [email protected]
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N 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:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N 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:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2018-18591

Affected software / configurations for CVE-2018-18591

Vendor Product Version Raw CPE
microfocus service_manager 9.30 cpe:2.3:a:microfocus:service_manager:9.30:*:*:*:*:*:*:*
microfocus service_manager 9.31 cpe:2.3:a:microfocus:service_manager:9.31:*:*:*:*:*:*:*
microfocus service_manager 9.32 cpe:2.3:a:microfocus:service_manager:9.32:*:*:*:*:*:*:*
microfocus service_manager 9.33 cpe:2.3:a:microfocus:service_manager:9.33:*:*:*:*:*:*:*
microfocus service_manager 9.34 cpe:2.3:a:microfocus:service_manager:9.34:*:*:*:*:*:*:*
microfocus service_manager 9.35 cpe:2.3:a:microfocus:service_manager:9.35:*:*:*:*:*:*:*
microfocus service_manager 9.40 cpe:2.3:a:microfocus:service_manager:9.40:*:*:*:*:*:*:*
microfocus service_manager 9.41 cpe:2.3:a:microfocus:service_manager:9.41:*:*:*:*:*:*:*
microfocus service_manager 9.50 cpe:2.3:a:microfocus:service_manager:9.50:*:*:*:*:*:*:*
microfocus service_manager 9.51 cpe:2.3:a:microfocus:service_manager:9.51:*:*:*:*:*:*:*

References for CVE-2018-18591

cvelogic Threat Intelligence