How severe is CVE-2018-12465?

CVE-2018-12465 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-12465 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 80% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12465?

CVE-2018-12465 affects Microfocus Secure Messaging Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12465?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-12465 published?

CVE-2018-12465 was published on 2018-06-29 and last updated on 2026-06-17.

CVE-2018-12465

CVE-2018-12465 is a critical-severity vulnerability in Microfocus Secure Messaging Gateway with a CVSS 3.x base score of 9.1. Its EPSS exploit-prediction score of 80% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 9.0
EPSS exploit prediction: 80% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Microfocus Secure Messaging Gateway
Published: 2018-06-29
Last modified: 2026-06-17

Description

An OS command injection vulnerability in the web administration component of Micro Focus Secure Messaging Gateway (SMG) allows a remote attacker authenticated as a privileged user to execute arbitrary OS commands on the SMG server. This can be exploited in conjunction with CVE-2018-12464 to achieve unauthenticated remote code execution. Affects Micro Focus Secure Messaging Gateway versions prior to 471. It does not affect previous versions of the product that used GWAVA product name (i.e. GWAVA 6.5).

Frequently asked questions

What is CVE-2018-12465?: An OS command injection vulnerability in the web administration component of Micro Focus Secure Messaging Gateway (SMG) allows a remote attacker authenticated as a privileged user to execute arbitrary OS commands on the SMG server. This can be exploited in conjunction with CVE-2018-12464 to achieve unauthenticated remote code execution. Affects Micro Focus Secure Messaging Gateway versions prior to 471. It does not affect previous versions of the product that used GWAVA product name (i.e. GWAVA 6.5).
How severe is CVE-2018-12465?: CVE-2018-12465 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-12465 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 80% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12465?: CVE-2018-12465 affects Microfocus Secure Messaging Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12465?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-12465 published?: CVE-2018-12465 was published on 2018-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microfocus:secure_messaging_gateway:*:*:*:*:*:*:*:*

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