CVE-2018-12178

CVE-2018-12178 is a critical-severity vulnerability in Tianocore Edk Ii with a CVSS 3.x base score of 9.1. 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-119.

Key facts

Description

Buffer overflow in network stack for EDK II may allow unprivileged user to potentially enable escalation of privilege and/or denial of service via network.

Frequently asked questions

What is CVE-2018-12178?
Buffer overflow in network stack for EDK II may allow unprivileged user to potentially enable escalation of privilege and/or denial of service via network.
How severe is CVE-2018-12178?
CVE-2018-12178 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2018-12178 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12178?
CVE-2018-12178 affects Tianocore Edk Ii. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12178?
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-2018-12178 published?
CVE-2018-12178 was published on 2019-03-27 and last updated on 2026-06-17.

References

Affected products (1)

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