dbcve.org
Efi Bios 7215Operating system · Intel

CVE-2021-0101

HIGH · 8.8 CVSS v3.1 Published 2021-06-09
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
93/100
Remediation priority · Urgent
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Buffer overflow vulnerability in the BMC (Baseboard Management Controller) firmware of Intel Server Board M10JNP2SB allows an unauthenticated attacker with adjacent network access to potentially escalate privileges by overflowing a buffer in the firmware.

MitigationUpdate BMC firmware to version 8100.01.08 or later and EFI BIOS to version 7215 or later. Restrict adjacent network access to management interfaces.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Efi Bios 7215Operating system
Affected:< bmc_8100.01.08

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the server board model
    Check the system information or physically label on the server to confirm it is Intel Server Board M10JNP2SB
    Affected if The server board is not M10JNP2SB (different models are not affected by this specific CVE)
  2. Check BMC firmware version
    Access BMC web interface or use IPMI command: ipmitool -I lanplus -H <BMC_IP> -U <user> -P <pass> raw 0x00 0x01 or check via BMC web UI under Firmware Information
    Affected if BMC firmware version is lower than 8100.01.08
  3. Check EFI BIOS version
    Enter BIOS setup during boot or use IPMI: ipmitool -I lanplus -H <BMC_IP> raw 0x00 0x02, or check via BMC web UI under BIOS Information
    Affected if EFI BIOS version is 7215 or earlier (the exact threshold format in advisory suggests 7215 is the fixed version)
  4. Verify adjacent network exposure of BMC
    Review network configuration to determine if BMC management interface (IPMI, web UI, Redfish) is accessible from network segments other than a dedicated management network
    Affected if BMC management interface is reachable from adjacent/untrusted network segments

Environment is affected if the server is an Intel M10JNP2SB board with BMC firmware below 8100.01.08 (or BIOS below 7215) AND the BMC management interface is accessible from adjacent network segments.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update BMC firmware to version 8100.01.08 or later and EFI BIOS to version 7215 or later. Restrict adjacent network access to management interfaces.

Recommended fix High confidence

BMC firmware 8100.01.08 (and EFI BIOS 7215 or later)

  1. 1. Identify the current BMC firmware version on the Intel Server Board M10JNP2SB by accessing the BMC web interface or using IPMI commands
  2. 2. Identify the current EFI BIOS version on the server
  3. 3. Download the BMC firmware version 8100.01.08 from the Intel support website (www.intel.com)
  4. 4. Upload the BMC firmware 8100.01.08 to the BMC via the web interface or IPMI firmware update command
  5. 5. Wait for the BMC firmware update to complete and for the BMC to reboot
  6. 6. If EFI BIOS version is below 7215, also download and apply EFI BIOS version 7215 or later
  7. 7. Verify the updated versions by checking the BMC and BIOS firmware information post-update
Caveat firmware updates may require server downtime; ensure proper backup and maintenance window; validate compatibility with other system components before applying

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Efi Bios 7215 Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,800
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-0101 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data