What is CVE-2021-0101?

CVE-2021-0101 is a high-severity vulnerability in Intel Efi Bios 7215, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2021-06-09.

How severe is CVE-2021-0101?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Intel Efi Bios 7215

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.

Vulnerability class: Buffer Overflow

Published 2021-06-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Intel Efi Bios 7215
Intel Server Board M10jnp2sb
Intel(r) Server Boardm10jnp2sb — versions before version EFI BIOS 7215, BMC 8100.01.08

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00474.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-0101?: CVE-2021-0101 is a high-severity vulnerability in Intel Efi Bios 7215, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2021-06-09.
How severe is CVE-2021-0101?: High severity. CVSS v3 base score is 8.8 out of 10.