How severe is CVE-2018-9083?

CVE-2018-9083 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-9083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9083?

CVE-2018-9083 affects Lenovo System Management Module Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-9083?

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-2018-9083 published?

CVE-2018-9083 was published on 2018-11-27 and last updated on 2026-06-17.

CVE-2018-9083

CVE-2018-9083 is a high-severity vulnerability in Lenovo System Management Module Firmware with a CVSS 3.x base score of 8.1. 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-798.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 9.3
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Lenovo System Management Module Firmware
Published: 2018-11-27
Last modified: 2026-06-17

Description

In System Management Module (SMM) versions prior to 1.06, the SMM contains weak default root credentials which could be used to log in to the device OS -- if the attacker manages to enable SSH or Telnet connections via some other vulnerability.

Frequently asked questions

What is CVE-2018-9083?: In System Management Module (SMM) versions prior to 1.06, the SMM contains weak default root credentials which could be used to log in to the device OS -- if the attacker manages to enable SSH or Telnet connections via some other vulnerability.
How severe is CVE-2018-9083?: CVE-2018-9083 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-9083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9083?: CVE-2018-9083 affects Lenovo System Management Module Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-9083?: 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-2018-9083 published?: CVE-2018-9083 was published on 2018-11-27 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/solutions/LEN-24374

Affected products (1)

cpe:2.3:o:lenovo:system_management_module_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Lenovo System Management Module Firmware

CVE-2018-16094 — High (CVSS 8.1): In System Management Module (SMM) versions prior to 1.06, an internal SMM function that retrieves configuration…
CVE-2018-16092 — High (CVSS 8.1): In System Management Module (SMM) versions prior to 1.06, the FFDC feature includes the collection of SMM system files…
CVE-2018-16091 — High (CVSS 8.1): In System Management Module (SMM) versions prior to 1.06, the SMM certificate creation and parsing logic is vulnerable…
CVE-2018-16090 — High (CVSS 7.5): In System Management Module (SMM) versions prior to 1.06, the SMM certificate creation and parsing logic is vulnerable…
CVE-2018-16089 — High (CVSS 7.5): In System Management Module (SMM) versions prior to 1.06, a field in the header of SMM firmware update images is…
CVE-2018-9084 — Medium (CVSS 6.5): In System Management Module (SMM) versions prior to 1.06, if an attacker manages to log in to the device OS, the…

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