How severe is CVE-2018-12171?

CVE-2018-12171 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-12171 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12171?

CVE-2018-12171 affects Intel Bmc Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12171?

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-2018-12171 published?

CVE-2018-12171 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-12171

CVE-2018-12171 is a critical-severity vulnerability in Intel Bmc Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Intel Bmc Firmware
Published: 2018-09-12
Last modified: 2026-06-17

Description

Privilege escalation in Intel Baseboard Management Controller (BMC) firmware before version 1.43.91f76955 may allow an unprivileged user to potentially execute arbitrary code or perform denial of service over the network.

Frequently asked questions

What is CVE-2018-12171?: Privilege escalation in Intel Baseboard Management Controller (BMC) firmware before version 1.43.91f76955 may allow an unprivileged user to potentially execute arbitrary code or perform denial of service over the network.
How severe is CVE-2018-12171?: CVE-2018-12171 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-12171 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12171?: CVE-2018-12171 affects Intel Bmc Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12171?: 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-2018-12171 published?: CVE-2018-12171 was published on 2018-09-12 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00149.html

Affected products (1)

cpe:2.3:o:intel:bmc_firmware:*:*:*:*:*:*:*:*

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