How severe is CVE-2018-12183?

CVE-2018-12183 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-12183 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12183?

CVE-2018-12183 affects Tianocore Edk Ii. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12183?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-12183 published?

CVE-2018-12183 was published on 2019-03-27 and last updated on 2026-06-17.

CVE-2018-12183

CVE-2018-12183 is a medium-severity vulnerability in Tianocore Edk Ii with a CVSS 3.x base score of 6.8. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tianocore Edk Ii
Published: 2019-03-27
Last modified: 2026-06-17

Description

Stack overflow in DxeCore for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Frequently asked questions

What is CVE-2018-12183?: Stack overflow in DxeCore for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.
How severe is CVE-2018-12183?: CVE-2018-12183 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-12183 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12183?: CVE-2018-12183 affects Tianocore Edk Ii. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12183?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-12183 published?: CVE-2018-12183 was published on 2019-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tianocore:edk_ii:-:*:*:*:*:*:*:*

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