CVE-2021-23376: This affects all versions of package ffmpegdotjs

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2021-23376 is a critical-severity flaw (CVSS 9.8) affecting ffmpegdotjs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This affects all versions of package ffmpegdotjs. If attacker-controlled user input is given to the trimvideo function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 20%)
CISA exploited list	No
Weakness	CWE-78
Published	2021-04-18
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: ffmpegdotjs project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-04-18 19:15 UTCPublished CVE record published
2026-06-17 03:38 UTCUpdated Record last modified

ffmpegdotjs project ffmpegdotjs MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls ffmpegdotjs

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-23376?

ffmpegdotjs: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-23376 being exploited?

CVE-2021-23376 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-23376 affect?

CVE-2021-23376 affects ffmpegdotjs. Severity is critical (CVSS 9.8). This affects all versions of package ffmpegdotjs. If attacker-controlled user input is given to the trimvideo function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function with

How urgent is CVE-2021-23376?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs