CVE-2023-4581
4.3
MEDIUM
CVSS 3.1
EPSS 0.16%
Description
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
How to fix CVE-2023-4581
To remediate CVE-2023-4581, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 102.15.0esr-1~deb11u1 or later
- —upgrade to 1:102.15.0-1~deb11u1 or later
Is CVE-2023-4581 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 102.15.0esr-1~deb11u1
- from 0, < 1:102.15.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |