Vulnerability in Mozilla Thunderbird
CVE-2023-3417
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.
EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Mozilla Thunderbird — versions unspecified
- Debian Debian_linux — versions 10.0, 11.0, 12.0
Public proof-of-concept exploits
References
- security@mozilla.org (Permissions Required)
- security@mozilla.org (Mailing List, Third Party Advisory)
- security@mozilla.org (Third Party Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-3417?
- CVE-2023-3417 is a high-severity vulnerability in Mozilla Thunderbird. CVSS score: 7.5/10. Published 2023-07-24.
- How severe is CVE-2023-3417?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-3417 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.