How severe is CVE-2019-3644?

CVE-2019-3644 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-3644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3644?

CVE-2019-3644 primarily affects Mcafee Active Response. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-3644?

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-2019-3644 published?

CVE-2019-3644 was published on 2019-09-11 and last updated on 2026-06-17.

CVE-2019-3644

CVE-2019-3644 is a high-severity vulnerability in Mcafee Active Response with a CVSS 3.x base score of 7.5. 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 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mcafee Active Response
Published: 2019-09-11
Last modified: 2026-06-17

Description

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies.

Frequently asked questions

What is CVE-2019-3644?: McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies.
How severe is CVE-2019-3644?: CVE-2019-3644 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-3644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3644?: CVE-2019-3644 primarily affects Mcafee Active Response. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-3644?: 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-2019-3644 published?: CVE-2019-3644 was published on 2019-09-11 and last updated on 2026-06-17.

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10296

Affected products (22)

cpe:2.3:a:mcafee:active_response:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.3:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:active_response:2.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:advanced_threat_defense:4.6:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.3.4:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:10.4.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.0.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.1.3:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:enterprise_security_manager:11.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*

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