CVE-2026-112007
Schism Tracker through 20260524 contains a heap out-of-bounds write vulnerability in fmt_ult_load_song() in fmt/ult.c that fails to clamp th
CVSS
6.1
Medium
EPSS
0.1%
p2
KEV
—
Exploit Today
1
0-100
Published: Oct 18, 2026 · Last modified: Oct 19, 2026 · CWE-787
0.1%EPSS · 30 days0.1%
2026-10-192026-10-20
Schism Tracker through 20260524 contains a heap out-of-bounds write vulnerability in fmt_ult_load_song() in fmt/ult.c that fails to clamp the one-byte sample count to MAX_SAMPLES. Attackers can supply a crafted .ult module that overwrites the instruments pointer array, causing csf_destroy() to free attacker-chosen pointers and crash the application.
- github.comhttps://github.com/schismtracker/schismtracker
- github.comhttps://github.com/schismtracker/schismtracker/blob/74215ae300b555928332e03152dfcdc898f96ca6/fmt/ult.c#L319-L330
- hackmd.iohttps://hackmd.io/@haindpwn/schismtracker-ult-sample-count-oob-write
- www.vulncheck.comhttps://www.vulncheck.com/advisories/schism-tracker-through-20260524-heap-out-of-bounds-write-via-ult-loader
CVECVSSEPSSKEVRExploitTitleMod.
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