How severe is CVE-2019-14559?

CVE-2019-14559 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-2019-14559 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14559?

CVE-2019-14559 affects Tianocore Edk2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14559?

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-2019-14559 published?

CVE-2019-14559 was published on 2020-11-23 and last updated on 2026-06-17.

CVE-2019-14559

CVE-2019-14559 is a high-severity vulnerability in Tianocore Edk2 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. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Tianocore Edk2
Published: 2020-11-23
Last modified: 2026-06-17

Description

Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access.

Frequently asked questions

What is CVE-2019-14559?: Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access.
How severe is CVE-2019-14559?: CVE-2019-14559 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-2019-14559 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14559?: CVE-2019-14559 affects Tianocore Edk2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14559?: 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-2019-14559 published?: CVE-2019-14559 was published on 2020-11-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tianocore:edk2:-:*:*:*:*:*:*:*

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