Skip to content
Fencer Vulns
high 8.8

CVE-2022-46874 json

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place.

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-49654

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.

Patch / fix

  • Mozilla Firefox 108
  • Mozilla Thunderbird 102.6, 102.6.1
  • Mozilla Firefox ESR 102.6
  • firefox-esr Debian 14, Debian 13, Debian 12 102.6.0esr-1
  • thunderbird Debian 14, Debian 13, Debian 12 1:102.6.0-1

debian advisories DEBIAN-CVE-2022-46874

  • firefox Ubuntu 18.04 LTS 108.0+build2-0ubuntu0.18.04.1
  • firefox Ubuntu 20.04 LTS 108.0+build2-0ubuntu0.20.04.1
  • thunderbird Ubuntu 18.04 LTS 1:102.7.1+build2-0ubuntu0.18.04.1
  • thunderbird Ubuntu 20.04 LTS 1:102.7.1+build2-0ubuntu0.20.04.1
  • thunderbird Ubuntu 22.04 LTS 1:102.7.1+build2-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-46874

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • thunderbird RHEL 8 102.6.0-2.el8_7
  • thunderbird RHEL 9 102.6.0-2.el9_1
  • firefox RHEL 8 102.6.0-1.el8_7
  • firefox RHEL 9 102.6.0-1.el9_1
  • thunderbird RHEL 7 102.6.0-2.el7_9
  • firefox RHEL 7 102.6.0-1.el7_9
  • thunderbird RHEL 8.1 E4S 102.6.0-2.el8_1
  • thunderbird RHEL 8.4 EUS 102.6.0-2.el8_4

red hat advisories RHSA-2022:9074RHSA-2022:9077RHSA-2022:9080RHSA-2022:9075RHSA-2022:9067RHSA-2022:9078

  • MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 102.6.1-150200.8.99.1
  • MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 +1 more 102.6.0-150200.8.96.1
  • MozillaFirefox SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 102.6.0-150200.152.70.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 102.6.0-150000.150.68.1
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 102.6.0-112.142.1

suse advisories SUSE-SU-2022:4636-1SUSE-SU-2022:4579-1SUSE-SU-2022:4462-1SUSE-SU-2022:4461-1SUSE-SU-2022:4460-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaThunderbird openSUSE Tumbleweed 102.6.0-1.1
  • MozillaFirefox openSUSE Tumbleweed 108.0.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:12571-1openSUSE-SU-2024:12577-1

  • firefox AlmaLinux 9 102.6.0-1.el9_1.alma
  • firefox AlmaLinux 8 102.6.0-1.el8_7.alma
  • thunderbird AlmaLinux 8 102.6.0-2.el8_7.alma
  • thunderbird AlmaLinux 9 102.6.0-2.el9_1.alma

almalinux advisories ALSA-2022:9065ALSA-2022:9067ALSA-2022:9074ALSA-2022:9080

  • firefox Rocky Linux 8 102.6.0-1.el8_7

rocky linux advisories RLSA-2022:9067

  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +3 more 102.6.0-r0

alpine advisories ALPINE-CVE-2022-46874

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-46874 updated cvss 8.8

Mozilla: Drag and Dropped Filenames could have been truncated to malicious extensions

  • Red Hat Enterprise Linux 6 firefox, thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) firefox 102.6.0-1.el8_7, thunderbird 102.6.0-2.el8_7
    fixed: vendor fix RHSA-2022:9067
  • Red Hat Enterprise Linux AppStream (v. 9) firefox 102.6.0-1.el9_1, thunderbird 102.6.0-2.el9_1
    fixed: vendor fix RHSA-2022:9065
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox 102.6.0-1.el8_1, thunderbird 102.6.0-2.el8_1
    fixed: vendor fix RHSA-2022:9071
  • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox 102.6.0-1.el8_4, thunderbird 102.6.0-2.el8_4
    fixed: vendor fix RHSA-2022:9069
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox 102.6.0-1.el8_6, thunderbird 102.6.0-2.el8_6
    fixed: vendor fix RHSA-2022:9068
show 3 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox 102.6.0-1.el9_0, thunderbird 102.6.0-2.el9_0
    fixed: vendor fix RHSA-2022:9066
  • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux Client (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 102.6.0-1.el7_9 Red Hat Enterprise Linux Server (v. 7) firefox 102.6.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 102.6.0-1.el7_9
    fixed: vendor fix RHSA-2022:9072

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Mozilla Firefox
  • Mozilla Thunderbird
  • Mozilla Firefox ESR

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.