CVE catalog
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 the one-byte sample count to MAX_SAMPLES. Attackers can supply
- Severity
- Medium · CVSS 6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/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 - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.13% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | schism | sid | 2:20260524-1 | unknown |
| Debian | schism | trixie | 2:20250313-2 | unknown |
| Debian | schism | bookworm | 2:20221201-1 | unknown |
| Ubuntu | schism | 16.04 | 2:0+20110101-1build1 | vulnerable |
| Ubuntu | schism | 18.04 | 2:20160521-1 | vulnerable |
| Ubuntu | schism | 18.04 | 2:20170910-1 | vulnerable |
| Ubuntu | schism | 18.04 | 2:20180209-1 | vulnerable |
| Ubuntu | schism | 20.04 | 2:20190805-1 | vulnerable |
| Ubuntu | schism | 20.04 | 2:20190805-2 | vulnerable |
| Ubuntu | schism | 20.04 | 2:20190805-3 | vulnerable |
| Ubuntu | schism | 22.04 | 2:20200412-1 | vulnerable |
| Ubuntu | schism | 22.04 | 2:20210525-2 | vulnerable |
| Ubuntu | schism | 22.04 | 2:20211116-1 | vulnerable |
| Ubuntu | schism | 22.04 | 2:20220125-1 | vulnerable |
| Ubuntu | schism | 24.04 | 2:20221201-1 | vulnerable |
| Ubuntu | schism | 24.04 | 2:20230906-1 | vulnerable |
| Ubuntu | schism | 24.04 | 2:20231029-1 | vulnerable |
| Ubuntu | schism | 24.04 | 2:20240129-1 | vulnerable |
| Ubuntu | schism | 26.10 | 2:20251014-1 | vulnerable |
| Ubuntu | schism | 26.04 | 2:20250313-2 | vulnerable |
| Ubuntu | schism | 26.04 | 2:20250825-1 | vulnerable |
| Ubuntu | schism | 26.04 | 2:20251014-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | schism | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | schism | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | schism | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [schism]Affected
Details (2)
2:20221201-1· amd64 · bookwormAffected
nvd · schism · debian · bookworm; nvd · schism · debian · 12
2:20221201-1· arm64 · bookwormAffected
nvd · schism · debian · bookworm; nvd · schism · debian · 12
[Debian 13 (Trixie)]
- [schism]Affected
Details (2)
2:20250313-2· amd64 · trixieAffected
nvd · schism · debian · 13
2:20250313-2· arm64 · trixieAffected
nvd · schism · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-112007]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-112007]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-112007]
- [https://security-tracker.debian.org/tracker/CVE-2026-112007]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-112007.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]