Application content replacement via COM hijacking
Published May 30, 2025 · Updated May 30, 2025
COM hijacking in HCL Traveler for Microsoft Outlook before 3.0.12 allows local users to replace application content. HCL has not disclosed the affected COM registration, lookup path, or unsafe search operation that accepts attacker-controlled content. Exploitation requires high local privileges and user interaction, after which substituted content runs in the application context.
Summary
What happened
COM hijacking in HCL Traveler for Microsoft Outlook before 3.0.12 allows local users to replace application content. HCL has not disclosed the affected COM registration, lookup path, or unsafe search operation that accepts attacker-controlled content. Exploitation requires high local privileges and user interaction, after which substituted content runs in the application context.
The record
- CVE
- CVE-2024-42191
- Published
- May 30, 2025
- Updated
- May 30, 2025
- Vendor
- HCL Software
- Product
- HCL Traveler for Microsoft Outlook
- Classifications
- CWE-427, T1546.015
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- May 30, 2025CVE publishedPublication date reported by the CVE source.
- May 30, 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.
- Affected versionversion=< 3.0.12
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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