How severe is CVE-2021-0189?

CVE-2021-0189 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-0189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0189?

CVE-2021-0189 primarily affects Intel Xeon E3-1558l V5 Firmware. In total, 168 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-0189?

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-2021-0189 published?

CVE-2021-0189 was published on 2022-05-12 and last updated on 2026-06-17.

CVE-2021-0189

CVE-2021-0189 is a high-severity vulnerability in Intel Xeon E3-1558l V5 Firmware with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Intel Xeon E3-1558l V5 Firmware
Published: 2022-05-12
Last modified: 2026-06-17

Description

Use of out-of-range pointer offset in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.

Frequently asked questions

What is CVE-2021-0189?: Use of out-of-range pointer offset in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.
How severe is CVE-2021-0189?: CVE-2021-0189 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-0189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0189?: CVE-2021-0189 primarily affects Intel Xeon E3-1558l V5 Firmware. In total, 168 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-0189?: 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-2021-0189 published?: CVE-2021-0189 was published on 2022-05-12 and last updated on 2026-06-17.

References

Affected products (168)

cpe:2.3:o:intel:xeon_e3-1558l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1565l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1578l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1585_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1585l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1515m_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1545m_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1575m_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1220_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1225_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1230_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1235l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1240_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1240l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1245_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1260l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1268l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1270_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1275_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1280_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1505l_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1505m_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1535m_v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1285_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1501l_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1501m_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1220_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1225_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1230_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1240_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1245_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1270_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1275_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1280_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1505l_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1505m_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e3-1535m_v6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e7-8894_v4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e7-4809_v4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:xeon_e7-4820_v4_firmware:-:*:*:*:*:*:*:*

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