How severe is CVE-2019-12816?

CVE-2019-12816 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-12816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12816?

CVE-2019-12816 affects Znc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12816?

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-2019-12816 published?

CVE-2019-12816 was published on 2019-06-15 and last updated on 2026-06-17.

CVE-2019-12816

CVE-2019-12816 is a high-severity vulnerability in Znc with a CVSS 3.x base score of 8.8. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Znc
Published: 2019-06-15
Last modified: 2026-06-17

Description

Modules.cpp in ZNC before 1.7.4-rc1 allows remote authenticated non-admin users to escalate privileges and execute arbitrary code by loading a module with a crafted name.

Frequently asked questions

What is CVE-2019-12816?: Modules.cpp in ZNC before 1.7.4-rc1 allows remote authenticated non-admin users to escalate privileges and execute arbitrary code by loading a module with a crafted name.
How severe is CVE-2019-12816?: CVE-2019-12816 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-12816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12816?: CVE-2019-12816 affects Znc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12816?: 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-2019-12816 published?: CVE-2019-12816 was published on 2019-06-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:znc:znc:*:*:*:*:*:*:*:*

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