Multiple buffer overflows in Xiph.Org libvorbis before 1.2.0 allow context-dependent attackers to cause a denial of service or have other unspecified impact via a crafted OGG file, aka trac Changesets 13162, 13168, 13169, 13170, 13172, 13211, and 13215, as demonstrated by an overflow in oggenc.exe related to the _psy_noiseguards_8 array.
Conclusion & alert: CVE-2007-4066 is rated Moderate Risk (45.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.30%). 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 | 2026-05-10 | 1.25% | 1.30% | +0.05% |
| 2 | 2025-12-06 | 1.26% | 1.25% | -0.02% |
| 3 | 2025-03-30 | — | 1.26% | — |
Full EPSS history (14 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 | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2007-4066 not yet assigned priority: Debian including 2 source packages (libvorbis, libvorbisidec), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2007-4066 |
gentoo
|
normal | CVE-2007-4066: 1 GLSA(s) (200710-03), 1 atom(s) (media-libs/libvorbis); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-4066 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2007-4066 |
ubuntu
|
low | CVE-2007-4066 low priority: Ubuntu including 1 source packages (libvorbis), 8 status rows across 8 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, upstream): released 5, ignored 3. | https://ubuntu.com/security/CVE-2007-4066 |