The DMO_VideoDecoder_Open function in loader/dmo/DMO_VideoDecoder.c in MPlayer 1.0rc1 and earlier, as used in xine-lib, does not set the biSize before use in a memcpy, which allows user-assisted remote attackers to cause a buffer overflow and possibly execute arbitrary code, a different vulnerability than CVE-2007-1387.
Conclusion & alert: CVE-2007-1246 is rated Moderate Risk (63.1/100): CVSS High severity, with high exploitation likelihood (EPSS 9.30%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2025-10-20 | 8.98% | 9.30% | +0.33% |
| 2 | 2025-03-30 | 9.22% | 8.98% | -0.24% |
| 3 | 2025-03-29 | — | 9.22% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.6 | 2.0 | HIGH |
|
4.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
medium | CVE-2007-1246 medium priority: Debian including 1 source packages (mplayer), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-1246 |
gentoo
|
normal | CVE-2007-1246: 2 GLSA(s) (200704-09, 200705-21), 2 atom(s) (media-libs/xine-lib, media-video/mplayer); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-1246 |
ubuntu
|
medium | CVE-2007-1246 medium priority: Ubuntu including 2 source packages (mplayer, xine-lib), 10 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): released 8, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2007-1246 |
: Failed exploit attempts will likely result in a denial-of-service condition.