Search/CVE-2019-9721
● CVE — Medium

CVE-2019-9721

Vendorcanonical, ffmpegProductubuntu linux, ffmpegDiscoveredMar 12, 2019UpdatedNov 21, 2024

A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.

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CVSS v3.1
6.5 MEDIUM
EPSS
1.44%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Aug 20, 2026
▲ 0.01pp
1.42% → 1.44% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Connections
3 relationships
Timeline
disclosure → media coverage
Mar 12, 2019
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024