Medium severity5.5NVD Advisory· Published Nov 6, 2026
CVE-2026-123976
CVE-2026-123976
Description
EDFbrowser before 2.16 contains an out-of-bounds write vulnerability in check_edf_file() that allows attackers to overflow the 256-element annot_ch array by supplying excessive annotation signals. Attackers can craft an EDF+ or BDF+ file with more than 256 annotation signals to overwrite edfhdrblock members, including the signal parameter pointer, crashing the application when opened.
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Affected products
1- Range: <2.16
Patches
Vulnerability mechanics
References
5- gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/check_edf_file.cnvd
- gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/global.hnvd
- gitlab.com/Teuniz/EDFbrowser/-/commit/f64cec4a22af34adb7bbdf5fec12cb3a880ddc5anvd
- gitlab.com/Teuniz/EDFbrowser/-/tags/v2.16nvd
- www.vulncheck.com/advisories/edfbrowser-before-2.16-out-of-bounds-write-via-check-edf-file-annotation-signalsnvd
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