Heap-based buffer overflow in the ClearKey Content Decryption Module (CDM) in the…
Priority LOW 35CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
Heap-based buffer overflow in the ClearKey Content Decryption Module (CDM) in the Encrypted Media Extensions (EME) API in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 might allow remote attackers to execute arbitrary code by providing a malformed video and leveraging a Gecko Media Plugin (GMP) sandbox bypass.
Why it matters now
EPSS 0.04577 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 · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | up to 47.0.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:45.1.0:*:*:*:*:*:*:* | 45.1.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:45.1.1:*:*:*:*:*:*:* | 45.1.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:45.2.0:*:*:*:*:*:*:* | 45.2.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:firefox:45.3.0:*:*:*:*:*:*:* | 45.3.0 | Vulnerable | Mozilla |
| cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Oracle |
| cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* | 6 | Vulnerable | Oracle |
| cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* | 7 | Vulnerable | Oracle |
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 47.0.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:45.1.0:*:*:*:*:*:*:* Versions 45.1.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:45.1.1:*:*:*:*:*:*:* Versions 45.1.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:45.2.0:*:*:*:*:*:*:* Versions 45.2.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:firefox:45.3.0:*:*:*:*:*:*:* Versions 45.3.0 Vulnerable ·Mozilla
- cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Oracle
- cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* Versions 6 Vulnerable ·Oracle
- cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
Remediation
Red Hat 1 advisory
- RHSA-2016:1551 Released 2016-08-03 · Red Hat rating Criticalfirefox security update
- Red Hat Enterprise Linux (v. 5 server) firefox-45.3.0-1.el5_11, firefox-45.3.0-1.el5_11.i386
- Red Hat Enterprise Linux Client (v. 7) firefox-45.3.0-1.el7_2
- Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.3.0-1.el7_2
- Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.3.0-1.el5_11, firefox-45.3.0-1.el5_11.i386
- Red Hat Enterprise Linux Desktop (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux Server (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux Server (v. 7) firefox-45.3.0-1.el7_2
- Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.3.0-1.el6_8, firefox-45.3.0-1.el6_8.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.3.0-1.el7_2, firefox-45.3.0-1.el7_2.ppc
- Red Hat Enterprise Linux Workstation (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux Workstation (v. 7) firefox-45.3.0-1.el7_2
- Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.3.0-1.el6_8
- Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.3.0-1.el7_2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2016:1551 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2016:1551 |
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-2016-2837
- 2026-10-03 Alias added: GHSA-94c3-g97c-h69h
References
Advisory 8
Sources
- CVE-2016-2837 · CVE Program
- CVE-2016-2837 · NVD
- FIRST EPSS
- GHSA-94c3-g97c-h69h · GitHub Advisory Database · CC BY 4.0
- CVE-2016-2837 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences