CVE-2021-25139Network attack vector

Unauthenticated root code execution via unchecked stack copy

Published Feb 9, 2021 · Updated Aug 3, 2024

Stack-based buffer overflow in HPE Moonshot Provisioning Manager 1.20 allows remote attackers to execute code via khuploadfile.cgi. The CGI binary copies user-supplied data into a fixed-length stack buffer without first validating its length. No authentication is required; successful exploitation executes code as root, and HPE does not specify whether the reported denial of service is a crash or hang.

CVSS severity7.3
High
EPSS probability7.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in HPE Moonshot Provisioning Manager 1.20 allows remote attackers to execute code via khuploadfile.cgi. The CGI binary copies user-supplied data into a fixed-length stack buffer without first validating its length. No authentication is required; successful exploitation executes code as root, and HPE does not specify whether the reported denial of service is a crash or hang.

The record

CVE
CVE-2021-25139
Published
Feb 9, 2021
Updated
Aug 3, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
HPE Moonshot Provisioning Manager
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 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=v1.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · HPE Moonshot Provisioning Managerversion=v1.20

Published CVSS scores

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8Trend Micro Zero Day InitiativeCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5Hewlett Packard EnterpriseAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3Hewlett Packard EnterpriseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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