The hevc_write_frame function in libbpg.c in libbpg 0.9.7 allows remote attackers to cause a denial of service (integer underflow and application crash) or possibly have unspecified other impact via a crafted BPG file, related to improper interaction with copy_CTB_to_hv in hevc_filter.c in libavcodec in FFmpeg and sao_filter_CTB in hevc_filter.c in libavcodec in FFmpeg.
Conclusion & alert: CVE-2017-14796 is rated High Exploit Risk (74.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.61%). 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 | 2026-03-04 | 0.52% | 0.61% | +0.09% |
| 2 | 2026-03-01 | 0.61% | 0.52% | -0.09% |
| 3 | 2026-02-04 | — | 0.61% | — |
Full EPSS history (40 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| libbpg_project | libbpg | 0.9.7 | cpe:2.3:a:libbpg_project:libbpg:0.9.7:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/leonzhao7/vulnerability/blob/master/An%20integer%20underflow%20vulnerability%20in%20sao_filter_CTB%20of%20libbpg.md | Exploit Third Party Advisory |