How severe is CVE-2019-18374?

CVE-2019-18374 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-2019-18374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18374?

CVE-2019-18374 primarily affects Broadcom Symantec Critical System Protection. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-18374?

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-2019-18374 published?

CVE-2019-18374 was published on 2019-11-25 and last updated on 2026-06-17.

CVE-2019-18374

CVE-2019-18374 is a critical-severity vulnerability in Broadcom Symantec Critical System Protection 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. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Broadcom Symantec Critical System Protection
Published: 2019-11-25
Last modified: 2026-06-17

Description

Symantec Critical System Protection (CSP), versions 8.0, 8.0 HF1 & 8.0 MP1, may be susceptible to an authentication bypass vulnerability, which is a type of issue that can potentially allow a threat actor to circumvent existing authentication controls.

Frequently asked questions

What is CVE-2019-18374?: Symantec Critical System Protection (CSP), versions 8.0, 8.0 HF1 & 8.0 MP1, may be susceptible to an authentication bypass vulnerability, which is a type of issue that can potentially allow a threat actor to circumvent existing authentication controls.
How severe is CVE-2019-18374?: CVE-2019-18374 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-2019-18374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18374?: CVE-2019-18374 primarily affects Broadcom Symantec Critical System Protection. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-18374?: 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-2019-18374 published?: CVE-2019-18374 was published on 2019-11-25 and last updated on 2026-06-17.

References

https://support.symantec.com/us/en/article.SYMSA1498.html

Affected products (3)

cpe:2.3:a:broadcom:symantec_critical_system_protection:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:symantec_critical_system_protection:8.0.0:hotfix1:*:*:*:*:*:*
cpe:2.3:a:broadcom:symantec_critical_system_protection:8.0.0:mp1:*:*:*:*:*:*

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CVE-2015-8799 — High (CVSS 7.6): Directory traversal vulnerability in the Management Server in Symantec Embedded Security: Critical System Protection…
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CVE-2015-8800 — High (CVSS 7.3): Symantec Embedded Security: Critical System Protection (SES:CSP) 1.0.x before 1.0 MP5, Embedded Security: Critical…

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