CVE-2024-39736Network attack vector

Session hijacking via unvalidated Host header

Published Jul 15, 2024 · Updated Aug 2, 2024

HTTP header injection in IBM Datacap Navigator 9.1.5 through 9.1.9 allows remote attackers to hijack sessions via crafted Host headers. The Navigator web application accepts an unvalidated Host request header and places the value into HTTP output without neutralizing scripting syntax. No authentication or user interaction is required; exploitation can execute browser script, poison caches, or hijack sessions.

CVSS severity6.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP header injection in IBM Datacap Navigator 9.1.5 through 9.1.9 allows remote attackers to hijack sessions via crafted Host headers. The Navigator web application accepts an unvalidated Host request header and places the value into HTTP output without neutralizing scripting syntax. No authentication or user interaction is required; exploitation can execute browser script, poison caches, or hijack sessions.

The record

CVE
CVE-2024-39736
Published
Jul 15, 2024
Updated
Aug 2, 2024
Vendor
OpenBMC Project
Product
IBM Datacap Navigator
Classifications
CWE-644, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=9.1.5, 9.1.6, 9.1.7, 9.1.8, 9.1.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · IBM Datacap Navigatorversion=9.1.5, 9.1.6, 9.1.7, 9.1.8, 9.1.9

Published CVSS scores

6.5IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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-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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