CVE-2021-0113

Service interruption via BMC out-of-bounds write

Published Jun 9, 2021 · Updated Aug 3, 2024

Out-of-bounds write in Intel Server Board M10JNP2SB BMC firmware before EFI BIOS 7215 and BMC 8100.01.08 allows attackers to interrupt service. Intel has not disclosed the affected BMC routine, the input that crosses its bounds, or whether the write causes a crash, hang, or reboot. Exploitation requires no authentication but does require adjacent access to the board; the vendor reports integrity and availability effects.

CVSS severity6.1
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Intel Server Board M10JNP2SB BMC firmware before EFI BIOS 7215 and BMC 8100.01.08 allows attackers to interrupt service. Intel has not disclosed the affected BMC routine, the input that crosses its bounds, or whether the write causes a crash, hang, or reboot. Exploitation requires no authentication but does require adjacent access to the board; the vendor reports integrity and availability effects.

The record

CVE
CVE-2021-0113
Published
Jun 9, 2021
Updated
Aug 3, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Server Board M10JNP2SB
Classifications
CWE-787, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version EFI BIOS 7215, BMC 8100.01.08

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Topcon Positioning Systems, Inc. · Intel Server Board M10JNP2SBversion=before version EFI BIOS 7215, BMC 8100.01.08

Published CVSS scores

6.1Intel CorporationCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
3.3NIST National Vulnerability DatabaseAV:A/AC:L/Au:N/C:N/I:N/A:P
6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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