CVE-2025-52647Network attack vector

Response poisoning via trusted Host header

Published Oct 10, 2025 · Updated Oct 10, 2025

Host header poisoning in HCL BigFix WebUI 11 allows remote attackers to manipulate HTTP responses through a crafted Host header. WebUI trusts attacker-controlled host information from the request header and returns it in HTTP responses without adequate neutralization. Exploitation requires user interaction; HCL has not disclosed the affected response path or the exact data that can be exposed or altered.

CVSS severity6.1
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Host header poisoning in HCL BigFix WebUI 11 allows remote attackers to manipulate HTTP responses through a crafted Host header. WebUI trusts attacker-controlled host information from the request header and returns it in HTTP responses without adequate neutralization. Exploitation requires user interaction; HCL has not disclosed the affected response path or the exact data that can be exposed or altered.

The record

CVE
CVE-2025-52647
Published
Oct 10, 2025
Updated
Oct 10, 2025
Vendor
HCL Software
Product
HCL BigFix WebUI
Classifications
CWE-644, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2025Record 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=v11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Software · HCL BigFix WebUIversion=v11

Published CVSS scores

6.1HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-644Improper Neutralization of HTTP Headers for Scripting Syntax
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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