Medium severity6.1NVD Advisory· Published Oct 18, 2026

CVE-2026-112007

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

schismtracker/schismtrackerllm-fuzzy
Range: <=20260524

Patches

Vulnerability mechanics

References

github.com/schismtracker/schismtracker/blob/74215ae300b555928332e03152dfcdc898f96ca6/fmt/ult.cnvd
hackmd.io/@haindpwn/schismtracker-ult-sample-count-oob-writenvd
www.vulncheck.com/advisories/schism-tracker-through-20260524-heap-out-of-bounds-write-via-ult-loadernvd

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cvss	0.397
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exploit	0.000
kev	0.000
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ransomware	0.000