How severe is CVE-2020-12594?

CVE-2020-12594 has a CVSS 3.x base score of 7.2, rated high 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-2020-12594 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12594?

CVE-2020-12594 affects Broadcom Symantec Messaging Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12594?

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

When was CVE-2020-12594 published?

CVE-2020-12594 was published on 2020-12-10 and last updated on 2026-06-17.

CVE-2020-12594

CVE-2020-12594 is a high-severity vulnerability in Broadcom Symantec Messaging Gateway with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 9.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Broadcom Symantec Messaging Gateway
Published: 2020-12-10
Last modified: 2026-06-17

Description

A privilege escalation flaw allows a malicious, authenticated, privileged CLI user to escalate their privileges on the system and gain full control over the SMG appliance. This affects SMG prior to 10.7.4.

Frequently asked questions

What is CVE-2020-12594?: A privilege escalation flaw allows a malicious, authenticated, privileged CLI user to escalate their privileges on the system and gain full control over the SMG appliance. This affects SMG prior to 10.7.4.
How severe is CVE-2020-12594?: CVE-2020-12594 has a CVSS 3.x base score of 7.2, rated high 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-2020-12594 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12594?: CVE-2020-12594 affects Broadcom Symantec Messaging Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12594?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12594 published?: CVE-2020-12594 was published on 2020-12-10 and last updated on 2026-06-17.

References

https://support.broadcom.com/security-advisory/content/security-advisories/Privilege-Escalation-and-Information-Disclosure-Vulnerabilities-in-SMG/SYMSA16609

Affected products (1)

cpe:2.3:a:broadcom:symantec_messaging_gateway:*:*:*:*:*:*:*:*

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