How severe is CVE-2021-0101?

CVE-2021-0101 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-0101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0101?

CVE-2021-0101 affects Intel Efi Bios 7215. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-0101?

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-2021-0101 published?

CVE-2021-0101 was published on 2021-06-09 and last updated on 2026-06-17.

CVE-2021-0101

CVE-2021-0101 is a high-severity vulnerability in Intel Efi Bios 7215 with a CVSS 3.x base score of 8.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Intel Efi Bios 7215
Published: 2021-06-09
Last modified: 2026-06-17

Description

Buffer overflow in the BMC firmware for Intel(R) Server BoardM10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08 may allow an unauthenticated user to potentially enable an escalation of privilege via adjacent access.

Frequently asked questions

What is CVE-2021-0101?: Buffer overflow in the BMC firmware for Intel(R) Server BoardM10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08 may allow an unauthenticated user to potentially enable an escalation of privilege via adjacent access.
How severe is CVE-2021-0101?: CVE-2021-0101 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-0101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0101?: CVE-2021-0101 affects Intel Efi Bios 7215. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-0101?: 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-2021-0101 published?: CVE-2021-0101 was published on 2021-06-09 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00474.html

Affected products (1)

cpe:2.3:o:intel:efi_bios_7215:*:*:*:*:*:*:*:*

More vulnerabilities in Intel Efi Bios 7215

CVE-2021-0070 — High (CVSS 8.8): Improper input validation in the BMC firmware for Intel(R) Server Board M10JNP2SB before version EFI BIOS 7215, BMC…
CVE-2021-0113 — Medium (CVSS 6.5): Out of bounds write in the BMC firmware for Intel(R) Server Board M10JNP2SB before version EFI BIOS 7215, BMC…
CVE-2021-0097 — Medium (CVSS 6.5): Path traversal in the BMC firmware for Intel(R) Server Board M10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08 may…

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