mp4fformat.dll in the QuickTime File Format plugin in RealNetworks RealPlayer 15 and earlier, and RealPlayer SP 1.1.4 Build 12.0.0.756 and earlier, allows remote attackers to cause a denial of service (memory corruption and application crash) via a crafted MP4 file.
Conclusion & alert: CVE-2012-1904 is rated High Exploit Risk (64.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.79%, 91th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 18661 | exploit_db | edb | 2012-03-24 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-15 | 4.26% | 4.79% | +0.53% |
| 2 | 2026-05-03 | 5.64% | 4.26% | -1.37% |
| 3 | 2026-02-17 | — | 5.64% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| realnetworks | realplayer | <= 15.0.0 | cpe:2.3:a:realnetworks:realplayer:*:*:*:*:*:*:*:* |
| realnetworks | realplayer | 4 | cpe:2.3:a:realnetworks:realplayer:4:*:*:*:*:*:*:* |
| realnetworks | realplayer | 5 | cpe:2.3:a:realnetworks:realplayer:5:*:*:*:*:*:*:* |
| realnetworks | realplayer | 6 | cpe:2.3:a:realnetworks:realplayer:6:*:*:*:*:*:*:* |
| realnetworks | realplayer | 7 | cpe:2.3:a:realnetworks:realplayer:7:*:*:*:*:*:*:* |
| realnetworks | realplayer | 8 | cpe:2.3:a:realnetworks:realplayer:8:*:*:*:*:*:*:* |
| realnetworks | realplayer | 10.0 | cpe:2.3:a:realnetworks:realplayer:10.0:*:*:*:*:*:*:* |
| realnetworks | realplayer | 10.5 | cpe:2.3:a:realnetworks:realplayer:10.5:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0 | cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.1 | cpe:2.3:a:realnetworks:realplayer:11.0.1:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.2 | cpe:2.3:a:realnetworks:realplayer:11.0.2:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.2.1744 | cpe:2.3:a:realnetworks:realplayer:11.0.2.1744:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.2.2315 | cpe:2.3:a:realnetworks:realplayer:11.0.2.2315:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.3 | cpe:2.3:a:realnetworks:realplayer:11.0.3:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.4 | cpe:2.3:a:realnetworks:realplayer:11.0.4:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.0.5 | cpe:2.3:a:realnetworks:realplayer:11.0.5:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.1 | cpe:2.3:a:realnetworks:realplayer:11.1:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11.1.3 | cpe:2.3:a:realnetworks:realplayer:11.1.3:*:*:*:*:*:*:* |
| realnetworks | realplayer | 11_build_6.0.14.748 | cpe:2.3:a:realnetworks:realplayer:11_build_6.0.14.748:*:*:*:*:*:*:* |
| realnetworks | realplayer | 12.0.0.1444 | cpe:2.3:a:realnetworks:realplayer:12.0.0.1444:*:*:*:*:*:*:* |
| realnetworks | realplayer | 12.0.0.1548 | cpe:2.3:a:realnetworks:realplayer:12.0.0.1548:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.0 | cpe:2.3:a:realnetworks:realplayer:14.0.0:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.1 | cpe:2.3:a:realnetworks:realplayer:14.0.1:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.1.609 | cpe:2.3:a:realnetworks:realplayer:14.0.1.609:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.2 | cpe:2.3:a:realnetworks:realplayer:14.0.2:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.3 | cpe:2.3:a:realnetworks:realplayer:14.0.3:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.4 | cpe:2.3:a:realnetworks:realplayer:14.0.4:*:*:*:*:*:*:* |
| realnetworks | realplayer | 14.0.5 | cpe:2.3:a:realnetworks:realplayer:14.0.5:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | <= 1.1.4 | cpe:2.3:a:realnetworks:realplayer_sp:*:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.0.0 | cpe:2.3:a:realnetworks:realplayer_sp:1.0.0:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.0.1 | cpe:2.3:a:realnetworks:realplayer_sp:1.0.1:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.0.2 | cpe:2.3:a:realnetworks:realplayer_sp:1.0.2:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.0.5 | cpe:2.3:a:realnetworks:realplayer_sp:1.0.5:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.1 | cpe:2.3:a:realnetworks:realplayer_sp:1.1:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.1.1 | cpe:2.3:a:realnetworks:realplayer_sp:1.1.1:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.1.2 | cpe:2.3:a:realnetworks:realplayer_sp:1.1.2:*:*:*:*:*:*:* |
| realnetworks | realplayer_sp | 1.1.3 | cpe:2.3:a:realnetworks:realplayer_sp:1.1.3:*:*:*:*:*:*:* |