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Fencer Vulns
medium 5.6

CVE-2024-4367 json

PDF.js vulnerable to arbitrary JavaScript execution upon opening a malicious PDF

published 2024-05-07 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-1831 , GHSA-wgrm-67xf-hhpq

cvss
5.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
70.7%
EPSS 70.7% chance of exploitation in 30 days, percentile 99.3%
public exploits
1
Exploit-DB

Summary

A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

Patch / fix

  • npm pdfjs-dist 4.2.67
  • Mozilla Firefox 126
  • Mozilla Firefox ESR 115.11
  • Mozilla Thunderbird 115.11
  • mozilla firefox_esr 115.11
  • Siemens Teamcenter V2312 V2312.0009
  • Siemens Teamcenter V2406 V2406.0006
  • wpewebkit Debian 14 2.52.5-1
  • webkit2gtk Debian 13 2.52.5-1~deb13u1
  • webkit2gtk Debian 14 2.52.5-1
  • firefox-esr Debian 12 115.11.0esr-1~deb12u1
  • firefox-esr Debian 14, Debian 13 115.11.0esr-1
  • thunderbird Debian 12 1:115.11.0-1~deb12u1
  • thunderbird Debian 14, Debian 13 1:115.11.0-1

debian advisories DEBIAN-CVE-2024-4367

  • firefox Ubuntu 20.04 LTS 126.0+build2-0ubuntu0.20.04.1
  • thunderbird Ubuntu 20.04 LTS 1:115.11.0+build2-0ubuntu0.20.04.1
  • thunderbird Ubuntu 22.04 LTS 1:115.11.0+build2-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2024-4367

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

  • webkit2gtk3 RHEL 8 2.52.5-1.el8_10
  • webkit2gtk3-jsc RHEL 8 2.52.5-1.el8_10
  • webkit2gtk3 RHEL 9 2.52.5-1.el9_8
  • webkit2gtk3-jsc RHEL 9 2.52.5-1.el9_8
  • thunderbird RHEL 8 115.11.0-1.el8_10
  • firefox RHEL 8 115.11.0-1.el8_10
  • thunderbird RHEL 9 115.11.0-1.el9_4
  • firefox RHEL 7 115.11.0-1.el7_9

red hat advisories RHSA-2026:59325RHSA-2026:59326RHSA-2026:58564RHSA-2026:58550RHSA-2026:57348RHSA-2026:54634

  • webkit2gtk3 SLES 16.0, SLES for SAP applications 16.0 2.52.5-160000.1.1
  • webkit2gtk4 SLES 16.0, SLES for SAP applications 16.0 2.52.5-160000.1.1
  • webkit2gtk3 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.5-150400.4.146.1
  • webkit2gtk4 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.5-150400.4.146.1
  • webkit2gtk3-soup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.5-150400.4.146.1
  • webkit2gtk3 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Desktop Applications 15 SP7 2.52.5-150600.12.71.1
  • webkit2gtk4 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Development Tools 15 SP7 +1 more 2.52.5-150600.12.71.1
  • webkit2gtk3-soup2 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 2.52.5-150600.12.71.1

suse advisories SUSE-SU-2026:3555-1SUSE-SU-2026:23111-1SUSE-SU-2026:23133-1SUSE-SU-2026:3396-1SUSE-SU-2026:3338-1SUSE-SU-2024:1858-1

  • webkit2gtk3 openSUSE Leap 16.0 2.52.5-160000.1.1
  • webkit2gtk4 openSUSE Leap 16.0 2.52.5-160000.1.1
  • webkit2gtk3-soup2 openSUSE Leap 16.0 2.52.5-160000.1.1
  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 126.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 115.11.0-1.1

opensuse advisories openSUSE-SU-2026:21508-1openSUSE-SU-2024:14572-1openSUSE-SU-2024:13980-1openSUSE-SU-2024:13981-1

  • webkit2gtk3 AlmaLinux 9 2.52.5-1.el9_8
  • webkit2gtk3-jsc AlmaLinux 9 2.52.5-1.el9_8
  • webkit2gtk3 AlmaLinux 8 2.52.5-1.el8_10
  • webkit2gtk3-jsc AlmaLinux 8 2.52.5-1.el8_10
  • firefox AlmaLinux 8 115.11.0-1.el8_10.alma.1
  • thunderbird AlmaLinux 8 115.11.0-1.el8_10.alma.1
  • firefox AlmaLinux 9 115.11.0-1.el9_4.alma.1
  • firefox-x11 AlmaLinux 9 115.11.0-1.el9_4.alma.1

almalinux advisories ALSA-2026:42062ALSA-2026:42088ALSA-2024:3783ALSA-2024:3784ALSA-2024:2883ALSA-2024:2888

  • webkit2gtk3 Rocky Linux 9 2.52.5-1.el9_8
  • webkit2gtk3 Rocky Linux 8 2.52.5-1.el8_10
  • thunderbird Rocky Linux 9 115.11.0-1.el9_4
  • firefox Rocky Linux 8 115.11.0-1.el8_10
  • thunderbird Rocky Linux 8 115.11.0-1.el8_10

rocky linux advisories RLSA-2026:42062RLSA-2026:42088RLSA-2024:2888RLSA-2024:3783RLSA-2024:3784

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-2024-4367 updated cvss 7.5

Mozilla: Arbitrary JavaScript execution in PDF.js

  • Red Hat Enterprise Linux 6 firefox, pywebkitgtk, thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) firefox 115.11.0-1.el8_10, webkit2gtk3 2.52.5-1.el8_10, thunderbird 115.11.0-1.el8_10, webkit2gtk3-jsc 2.52.5-1.el8_10
    fixed: vendor fix RHSA-2024:3783
  • Red Hat Enterprise Linux AppStream (v. 9) firefox 115.11.0-1.el9_4, webkit2gtk3 2.52.5-1.el9_8, firefox-x11 115.11.0-1.el9_4, thunderbird 115.11.0-1.el9_4, webkit2gtk3-jsc 2.52.5-1.el9_8
    fixed: vendor fix RHSA-2024:2883
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 115.11.0-1.el8_2, thunderbird 115.11.0-1.el8_2
    fixed: vendor fix RHSA-2024:2882
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox 115.11.0-1.el8_4, webkit2gtk3 2.52.5-1.el8_4, thunderbird 115.11.0-1.el8_4, webkit2gtk3-jsc 2.52.5-1.el8_4
    fixed: vendor fix RHSA-2024:2886
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3 2.52.5-1.el8_6, webkit2gtk3-jsc 2.52.5-1.el8_6
    fixed: vendor fix RHSA-2026:59325
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox 115.11.0-1.el8_4, thunderbird 115.11.0-1.el8_4
    fixed: vendor fix RHSA-2024:2886
show 18 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) webkit2gtk3 2.52.5-1.el8_8, webkit2gtk3-jsc 2.52.5-1.el8_8
    fixed: vendor fix RHSA-2026:59326
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) webkit2gtk3 2.52.5-1.el9_2, webkit2gtk3-jsc 2.52.5-1.el9_2
    fixed: vendor fix RHSA-2026:58550
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) webkit2gtk3 2.52.5-1.el9_4, webkit2gtk3-jsc 2.52.5-1.el9_4
    fixed: vendor fix RHSA-2026:54634
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox 115.11.0-1.el8_6, thunderbird 115.11.0-1.el8_6
    fixed: vendor fix RHSA-2024:2887
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox 115.11.0-1.el8_8, thunderbird 115.11.0-1.el8_8
    fixed: vendor fix RHSA-2024:2885
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox 115.11.0-1.el9_0, thunderbird 115.11.0-1.el9_0
    fixed: vendor fix RHSA-2024:2884
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox 115.11.0-1.el9_2, firefox-x11 115.11.0-1.el9_2, thunderbird 115.11.0-1.el9_2
    fixed: vendor fix RHSA-2024:2906
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) webkit2gtk3 2.52.5-1.el9_6, webkit2gtk3-jsc 2.52.5-1.el9_6
    fixed: vendor fix RHSA-2026:54572
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) webkit2gtk3 2.52.5-1.el8_4, webkit2gtk3-jsc 2.52.5-1.el8_4
    fixed: vendor fix RHSA-2026:57348
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) webkit2gtk3 2.52.5-1.el8_6, webkit2gtk3-jsc 2.52.5-1.el8_6
    fixed: vendor fix RHSA-2026:59325
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox 115.11.0-1.el8_4, thunderbird 115.11.0-1.el8_4
    fixed: vendor fix RHSA-2024:2886
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) webkit2gtk3 2.52.5-1.el8_8, webkit2gtk3-jsc 2.52.5-1.el8_8
    fixed: vendor fix RHSA-2026:59326
  • Red Hat Enterprise Linux Client (v. 7) firefox 115.11.0-1.el7_9, thunderbird 115.11.0-1.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 115.11.0-1.el7_9
    fixed: vendor fix RHSA-2024:2881
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.52.5-1.el7_9, webkitgtk4-jsc 2.52.5-1.el7_9
    fixed: vendor fix RHSA-2026:58564
  • Red Hat Enterprise Linux Server (v. 7) firefox 115.11.0-1.el7_9
    fixed: vendor fix RHSA-2024:2881
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.52.5-1.el7_9, webkitgtk4-devel 2.52.5-1.el7_9, webkitgtk4-debuginfo 2.52.5-1.el7_9, webkitgtk4-jsc-devel 2.52.5-1.el7_9
    fixed: vendor fix RHSA-2026:58564
  • Red Hat Enterprise Linux Server Optional (v. 7) firefox 115.11.0-1.el7_9, thunderbird 115.11.0-1.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 115.11.0-1.el7_9, thunderbird 115.11.0-1.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 115.11.0-1.el7_9
    fixed: vendor fix RHSA-2024:2881
  • Red Hat Enterprise Linux 6 webkitgtk
    not affected: vulnerable code not present

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 ICSA-26-134-04 updated cvss 5.6

Siemens Teamcenter

  • Siemens Teamcenter V2312 < 2312.0009
    affected: fixed in V2312.0009 support.sw.siemens.com
  • Siemens Teamcenter V2406 < 2406.0006
    affected: fixed in V2406.0006 support.sw.siemens.com
  • Siemens Teamcenter V2512
    not affected: component not present

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. Published
  2. First public exploit (EDB-52273)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

70.66% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-52273 Firefox ESR 115.11 - PDF.js Arbitrary JavaScript execution remote, 2025-04-22

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
GitHub 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 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected packages

ecosystem package affected fixed in
npm pdfjs-dist
<4.2.67
4.2.67

Affected products

  • Mozilla Firefox
  • Mozilla Firefox ESR
  • Mozilla Thunderbird
  • mozilla firefox_esr
  • Siemens Teamcenter V2312
  • Siemens Teamcenter V2406
  • Siemens Teamcenter V2512

Classification

Weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.