CVE-2017-7420

An Authentication Bypass (CWE-287) vulnerability in ESMAC (aka Enterprise Server Monitor and Control) in Micro Focus Enterprise Developer and Enterprise Server 2.3 and earlier, 2.3 Update 1 before Hotfix 8, and 2.3 Update 2 before Hotfix 9 allows remote unauthenticated attackers to view and alter configuration information and alter the state of the running product (CWE-275).

Published: 2017-08-21 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-7420 is rated High Risk (69.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.44%). EPSS rose +1.48% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize 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-2017-7420

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 0.96% 2.44% +1.48%
2 2026-04-21 0.32% 0.96% +0.64%
3 2026-03-15 — 0.32% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-7420

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-7420

Affected software / configurations for CVE-2017-7420

Vendor Product Version Raw CPE
microfocus enterprise_developer 2.3 cpe:2.3:a:microfocus:enterprise_developer:2.3:*:*:*:*:*:*:*
microfocus enterprise_developer 2.3 cpe:2.3:a:microfocus:enterprise_developer:2.3:update1:*:*:*:*:*:*
microfocus enterprise_developer 2.3 cpe:2.3:a:microfocus:enterprise_developer:2.3:update2:*:*:*:*:*:*
microfocus enterprise_server <= 2.3 cpe:2.3:a:microfocus:enterprise_server:*:*:*:*:*:*:*:*
microfocus enterprise_server 2.3 cpe:2.3:a:microfocus:enterprise_server:2.3:update1:*:*:*:*:*:*
microfocus enterprise_server 2.3 cpe:2.3:a:microfocus:enterprise_server:2.3:update2:*:*:*:*:*:*
microfocus enterprise_server_monitor_and_control — cpe:2.3:a:microfocus:enterprise_server_monitor_and_control:-:*:*:*:*:*:*:*

References for CVE-2017-7420

cvelogic Threat Intelligence