PDF.js in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before…
Priority MEDIUM 40CWE-17Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
PDF.js in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 enables excessive privileges for internal Workers, which might allow remote attackers to execute arbitrary code by leveraging a Same Origin Policy bypass.
Why it matters now
EPSS 0.04705 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 21
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:* | 31.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:* | 31.1.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.1.1:*:*:*:*:*:*:* | 31.1.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.3.0:*:*:*:*:*:*:* | 31.3.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.5.1:*:*:*:*:*:*:* | 31.5.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.5.2:*:*:*:*:*:*:* | 31.5.2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:31.5.3:*:*:*:*:*:*:* | 31.5.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* | 38.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.1:*:*:*:*:*:*:* | 31.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.2:*:*:*:*:*:*:* | 31.2 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:firefox:31.0:*:*:*:*:*:*:* Versions 31.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.1.0:*:*:*:*:*:*:* Versions 31.1.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.1.1:*:*:*:*:*:*:* Versions 31.1.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.3.0:*:*:*:*:*:*:* Versions 31.3.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.5.1:*:*:*:*:*:*:* Versions 31.5.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.5.2:*:*:*:*:*:*:* Versions 31.5.2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:31.5.3:*:*:*:*:*:*:* Versions 31.5.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:* Versions 38.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.1:*:*:*:*:*:*:* Versions 31.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.2:*:*:*:*:*:*:* Versions 31.2 Vulnerable ·Mozilla
Show 11 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox_esr:31.3:*:*:*:*:*:*:* | 31.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.4:*:*:*:*:*:*:* | 31.4 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.5:*:*:*:*:*:*:* | 31.5 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.6.0:*:*:*:*:*:*:* | 31.6.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox_esr:31.7.0:*:*:*:*:*:*:* | 31.7.0 | Vulnerable | Mozilla |
| cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* | 11.3 | Vulnerable | Oracle |
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | up to 38.1.0 | Vulnerable | Mozilla |
| cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp4:*:*:*:*:*:* | 11 sp4 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
- cpe:2.3:a:mozilla:firefox_esr:31.3:*:*:*:*:*:*:* Versions 31.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.4:*:*:*:*:*:*:* Versions 31.4 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.5:*:*:*:*:*:*:* Versions 31.5 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.6.0:*:*:*:*:*:*:* Versions 31.6.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox_esr:31.7.0:*:*:*:*:*:*:* Versions 31.7.0 Vulnerable ·Mozilla
- cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·Oracle
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 38.1.0 Vulnerable ·Mozilla
- cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp4:*:*:*:*:*:* Versions 11 sp4 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
Remediation
Red Hat 1 advisory
- RHSA-2015:1207 Released 2015-07-03 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux (v. 5 server) firefox-38.1.0-1.el5_11, firefox-38.1.0-1.el5_11.i386
- Red Hat Enterprise Linux Client (v. 7) firefox-38.1.0-1.el7_1
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-38.1.0-1.el7_1
- Red Hat Enterprise Linux Desktop (v. 5 client) firefox-38.1.0-1.el5_11, firefox-38.1.0-1.el5_11.i386
- Red Hat Enterprise Linux Desktop (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux Server (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux Server (v. 7) firefox-38.1.0-1.ael7b_1, firefox-38.1.0-1.el7_1
- Red Hat Enterprise Linux Server Optional (v. 6) firefox-38.1.0-1.el6_6, firefox-38.1.0-1.el6_6.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-38.1.0-1.el7_1, firefox-38.1.0-1.el7_1.ppc
- Red Hat Enterprise Linux Workstation (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux Workstation (v. 7) firefox-38.1.0-1.el7_1
- Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-38.1.0-1.el6_6
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-38.1.0-1.el7_1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:1207 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:1207 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2015-2743
- 2026-10-03 Alias added: GHSA-mqxq-gfh9-3ffc
References
Advisory 13
- openSUSE-SU-2015:1229
- SUSE-SU-2015:1268
- GLSA-201512-10
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- RHSA-2015:1207
- SUSE-SU-2015:1269
- openSUSE-SU-2015:1266
- http://www.mozilla.org/security/announce/2015/mfsa2015-69.html
- USN-2656-1
- SUSE-SU-2015:1449
- DSA-3300
- USN-2656-2
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
Sources
- CVE-2015-2743 · CVE Program
- CVE-2015-2743 · NVD
- FIRST EPSS
- GHSA-mqxq-gfh9-3ffc · GitHub Advisory Database · CC BY 4.0
- CVE-2015-2743 · Red Hat security data · CC BY 4.0
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