How severe is CVE-2024-23581?

CVE-2024-23581 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-23581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23581?

CVE-2024-23581 affects Hcltech Traveler For Microsoft Outlook. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-23581?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2024-23581 published?

CVE-2024-23581 was published on 2026-06-26 and last updated on 2026-07-06.

CVE-2024-23581

CVE-2024-23581 is a medium-severity vulnerability in Hcltech Traveler For Microsoft Outlook with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Hcltech Traveler For Microsoft Outlook
Published: 2026-06-26
Last modified: 2026-07-06

Description

The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.

Frequently asked questions

What is CVE-2024-23581?: The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.
How severe is CVE-2024-23581?: CVE-2024-23581 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-23581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23581?: CVE-2024-23581 affects Hcltech Traveler For Microsoft Outlook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-23581?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2024-23581 published?: CVE-2024-23581 was published on 2026-06-26 and last updated on 2026-07-06.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131417

Affected products (1)

cpe:2.3:a:hcltech:traveler_for_microsoft_outlook:*:*:*:*:*:*:*:*

More vulnerabilities in Hcltech Traveler For Microsoft Outlook

CVE-2023-37524 — High (CVSS 7.7): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of…
CVE-2024-30134 — Medium (CVSS 6.7): The HCL Traveler for Microsoft Outlook executable (HTMO.exe) is being flagged as potentially Malicious Software or an…
CVE-2024-42191 — Medium (CVSS 6.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a COM hijacking vulnerability which could allow an attacker…
CVE-2024-42190 — Medium (CVSS 6.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a DLL hijacking vulnerability which could allow an attacker…
CVE-2025-59868 — Medium (CVSS 5.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a sensitive data exposure vulnerability which could allow…
CVE-2024-42192 — Medium (CVSS 5.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a credential leakage which could allow an attacker to…

All CVEs affecting Hcltech Traveler For Microsoft Outlook →

Other CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities

CVE-2026-48558 — Critical (CVSS 10.0): SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the…
CVE-2023-25574 — Critical (CVSS 10.0): `jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI).…
CVE-2024-45409 — Critical (CVSS 10.0): The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <=…
CVE-2024-32962 — Critical (CVSS 10.0): xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default…
CVE-2022-24884 — Critical (CVSS 10.0): ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()`…
CVE-2021-33885 — Critical (CVSS 10.0): An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a…

Browse all CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities →