CVE-2024-30134

Application modification via undisclosed certificate validation

Published Sep 26, 2024 · Updated Sep 26, 2024

Application modification in HCL Traveler for Microsoft Outlook before 3.0.9 allows local users to alter HTMO.exe through unspecified vectors. Public records identify improper certificate validation but do not disclose which certificate check HTMO.exe performs incorrectly or how it enables modification. The attack requires low-privileged local access, high-complexity conditions, and user interaction; altered client execution can expose or change data and interrupt service.

CVSS severity6.7
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Application modification in HCL Traveler for Microsoft Outlook before 3.0.9 allows local users to alter HTMO.exe through unspecified vectors. Public records identify improper certificate validation but do not disclose which certificate check HTMO.exe performs incorrectly or how it enables modification. The attack requires low-privileged local access, high-complexity conditions, and user interaction; altered client execution can expose or change data and interrupt service.

The record

CVE
CVE-2024-30134
Published
Sep 26, 2024
Updated
Sep 26, 2024
Vendor
HCLSoftware
Product
HCL Traveler
Classifications
CWE-295
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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=0 <3.0.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

HCLSoftware · HCL Travelerversion=0 <3.0.9
HCL Software · HCL Traveler for Microsoft Outlookversion=<3.0.9

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
6.7HCL SoftwareCVSS:3.1/AV:L/AC:H/PR:L/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation

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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