How severe is CVE-2019-18215?

CVE-2019-18215 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-18215 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18215?

CVE-2019-18215 affects Comodo Comodo Internet Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18215?

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-2019-18215 published?

CVE-2019-18215 was published on 2019-11-18 and last updated on 2026-06-17.

CVE-2019-18215

CVE-2019-18215 is a high-severity vulnerability in Comodo Comodo Internet Security with a CVSS 3.x base score of 7.8. 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-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.4
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Comodo Comodo Internet Security
Published: 2019-11-18
Last modified: 2026-06-17

Description

An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.

Frequently asked questions

What is CVE-2019-18215?: An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
How severe is CVE-2019-18215?: CVE-2019-18215 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-18215 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18215?: CVE-2019-18215 affects Comodo Comodo Internet Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18215?: 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-2019-18215 published?: CVE-2019-18215 was published on 2019-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:comodo:comodo_internet_security:*:*:*:*:*:*:*:*

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