Integer signedness error in the SharedBufferManagerParent::RecvAllocateGrallocBuffer function in the buffer-management implementation in the graphics layer in Mozilla Firefox OS before 2.2 might allow attackers to cause a denial of service (memory corruption) via a negative value of a size parameter.
Conclusion & alert: CVE-2015-5962 is rated Moderate Risk (40.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.41%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 0.49% | 0.41% | -0.08% |
| 2 | 2025-03-29 | 0.41% | 0.49% | +0.08% |
| 3 | 2025-03-17 | — | 0.41% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox_os | <= 2.1.0 | cpe:2.3:o:mozilla:firefox_os:*:*:*:*:*:*:*:* |