CVE Catalog

CVE-2023-3417

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.56%

42th percentile - higher than 42% of all known CVEs

Summary

Thunderbird allowed the use of the Text Direction Override Unicode Character in filenames. As a result, an email attachment could be incorrectly displayed as a document file, while in fact it was an executable file.

Risk Assessment

The organization may be exposed to attacks where malicious executable files are mistaken for safe documents, potentially leading to system infections.

Recommendation

It is recommended to update Thunderbird to version 115.0.1 or 102.13.1 to eliminate this issue related to filenames.

Related vulnerabilities

Original NVD description (English source)

Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS