Use of Uninitialized Variable Affecting ffmpeg package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Nov 2026
- disclosed1 Nov 2026
- creditUnknown
Introduced: 1 Nov 2026
NewCVE-2026-120246 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Use of Uninitialized Variable in the cdxl_decode_ham8 or cdxl_decode_ham6 functions when processing type-0 CDXL files with HAM pixels that select uninitialized new_palette entries. An attacker can expose stack memory contents, including pointer fragments, by supplying a crafted file that triggers the use of these uninitialized palette entries.