CVE-2026-78430

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.08% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 64.8% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-12.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-24 19:45Z2 MO AGO

Last updated

2026-08-24 19:58Z2 MO AGO

Reserved

2026-08-24

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

0e49f45b54a3ccb2bdc006c98175bb8f52f565c5e9fc79039729eaf37bc04171

• vuldb.comVDB-394711 | sworddut mcp-ffmpeg-helper Tool handlers.ts handleToolCall os command injectionhttps://vuldb.com/vuln/394711vdb-entrytechnical-description
• vuldb.comVDB-394711 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/394711/ctisignaturepermissions-required
• vuldb.comCVE-2026-78430 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-78430third-party-advisory
• vuldb.comSubmit #886393 | sworddut mcp-ffmpeg-helper (FFmpeg MCP Server; npm @sworddut/mcp-ffmpeg-helper) <=0.2.1 (0.1.0, 0.1.1, 0.2.1; no fixed release) OS Command Injectionhttps://vuldb.com/submit/886393third-party-advisory
• github.comhttps://github.com/sworddut/mcp-ffmpeg-helper/issues/6exploitissue-tracking
• github.comhttps://github.com/sworddut/mcp-ffmpeg-helper/product