A heap-based buffer overflow vulnerability exists in the comment functionality of stb _vorbis.c v1.22. A specially crafted .ogg file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability.
Conclusion & alert: CVE-2023-47212 is rated High Exploit Risk (71.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.27%). Core evidence: 1 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 |
|---|---|---|---|---|
| — | 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 | 2025-11-29 | 0.36% | 0.27% | -0.08% |
| 2 | 2025-11-21 | 0.54% | 0.36% | -0.18% |
| 3 | 2025-11-18 | — | 0.54% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-47212 not yet assigned priority: Debian including 1 source packages (libstb), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. | https://security-tracker.debian.org/tracker/CVE-2023-47212 |
ubuntu
|
medium | CVE-2023-47212 medium priority: Ubuntu including 1 source packages (libstb), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): needs-triage 5, ignored 3. | https://ubuntu.com/security/CVE-2023-47212 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nothings | stb_vorbis.c | 1.22 | cpe:2.3:a:nothings:stb_vorbis.c:1.22:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
| fedoraproject | fedora | 39 | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* |
| fedoraproject | fedora | 40 | cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* |