CVE-2026-63305
OS command injection in AVideo ffmpeg.json.php allowing remote shell execution.
Is CVE-2026-63305 being exploited?
Not confirmed. CVE-2026-63305 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 2.5% probability of exploitation in the next 30 days.
How severe is CVE-2026-63305?
CVE-2026-63305 is rated Critical with a CVSS score of 9.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-63305?
Yes. A fix has been recorded for CVE-2026-63305. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-63305 affect?
CVE-2026-63305 affects AVideo ≤29.0, ffmpeg.json.php endpoint, Self-hosted AVideo instances. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-63305?
Apply vendor patch when available; restrict access to ffmpeg.json.php, enable WAF and audit logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Crafted encrypted payloads in notifyCode/callback allow arbitrary OS command execution as the web-server user.
Immediate action required
- affected<= 29.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.