How severe is CVE-2019-12751?

CVE-2019-12751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-12751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12751?

CVE-2019-12751 affects Symantec Message Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12751?

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-2019-12751 published?

CVE-2019-12751 was published on 2019-07-11 and last updated on 2026-06-17.

CVE-2019-12751

CVE-2019-12751 is a critical-severity vulnerability in Symantec Message Gateway with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Symantec Message Gateway
Published: 2019-07-11
Last modified: 2026-06-17

Description

Symantec Messaging Gateway, prior to 10.7.1, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.

Frequently asked questions

What is CVE-2019-12751?: Symantec Messaging Gateway, prior to 10.7.1, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.
How severe is CVE-2019-12751?: CVE-2019-12751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-12751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12751?: CVE-2019-12751 affects Symantec Message Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12751?: 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-2019-12751 published?: CVE-2019-12751 was published on 2019-07-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:symantec:message_gateway:*:*:*:*:*:*:*:*

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