CVE-2021-26571

Local code execution via unchecked buffer copy

Published Feb 8, 2021 · Updated Aug 3, 2024

Buffer overflow in HPE Apollo 70 System BMC firmware before 3.0.14.0 allows local users to execute arbitrary code. The WebGetActiveXCFG function in libifc.so copies locally supplied data into a buffer without checking that the destination can hold it. Low-privileged local access is required; successful exploitation runs attacker-controlled code in the BMC firmware context.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in HPE Apollo 70 System BMC firmware before 3.0.14.0 allows local users to execute arbitrary code. The WebGetActiveXCFG function in libifc.so copies locally supplied data into a buffer without checking that the destination can hold it. Low-privileged local access is required; successful exploitation runs attacker-controlled code in the BMC firmware context.

The record

CVE
CVE-2021-26571
Published
Feb 8, 2021
Updated
Aug 3, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
BMC Firmware for HPE Apollo 70 HPC Server
Classifications
CWE-120, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 8, 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=Prior to Version 3.0.14.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · BMC Firmware for HPE Apollo 70 HPC Serverversion=Prior to Version 3.0.14.0

Published CVSS scores

6.8Hewlett Packard EnterpriseAV:L/AC:L/Au:S/C:C/I:C/A:C
7.8Hewlett Packard EnterpriseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1068Exploitation for Privilege Escalation

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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