CVE-2023-4581 Affecting firefox-esr package, versions <102.15.0esr-1~deb12u1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.56% (44th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FIREFOXESR-18168843
  • published22 Jul 2026
  • disclosed11 Sept 2023

Introduced: 11 Sep 2023

CVE-2023-4581  (opens in a new tab)

How to fix?

Upgrade Echo:latest firefox-esr to version 102.15.0esr-1~deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1