PT-2026-68784
CVE-2026-70628
·
Published
2026-08-06
·
Updated
2026-09-18
Description by
CVSS 4.0
8.5
HighMetricsAV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
Name of the Vulnerable Software and Affected Versions
FFmpeg versions 0.5 through 8.x
Description
A signed integer overflow exists in the DVB subtitle parser within
libavcodec/dvbsub parser.c. An attacker can trigger a heap buffer overflow by providing a specially crafted WTV file. This occurs when a bounds-check guard expression wraps to INT MIN, bypassing the PARSE BUF SIZE comparison. Consequently, the memcpy() function is called with attacker-controlled data, leading to an out-of-bounds heap write, which may result in memory corruption or arbitrary code execution.Recommendations
Update FFmpeg to version 9.0 or later.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
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