{"id":"DEBIAN-CVE-2026-111123","details":"FluidSynth through 2.6.1 contains an out-of-bounds write vulnerability that allows attackers to corrupt heap and stack memory by supplying unvalidated SoundFont modulator destination values. Attackers can craft an SF2 file with PMOD/IMOD destinations of 63 to 255 that, when loaded and played, write past the voice generator array and updated_gen_bit, causing memory corruption and crashes.","modified":"2026-10-16T06:00:08.950749856Z","published":"2026-10-15T19:17:25.460Z","upstream":["CVE-2026-111123"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-111123"}],"affected":[{"package":{"name":"fluidsynth","ecosystem":"Debian:12","purl":"pkg:deb/debian/fluidsynth?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.1-2","2.3.2-1","2.3.3-1","2.3.3-2","2.3.3-2.1","2.3.4-1","2.3.5-1","2.3.6-1","2.4.0-1","2.4.0-1~hurd.1","2.4.0-1~hurd.2","2.4.2-1","2.4.3+dfsg-1","2.4.3+dfsg-2","2.4.3+dfsg-3","2.4.3+dfsg-4","2.4.3-1","2.4.4+dfsg-1","2.4.6+dfsg-1","2.4.7+dfsg-1","2.4.7+dfsg-2","2.4.8+dfsg-1","2.5.0+dfsg-1","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.2+dfsg-1","2.5.3+dfsg-1","2.5.4+dfsg-1","2.5.5+dfsg-1","2.5.5+dfsg-2","2.5.6+dfsg-1","2.5.7+dfsg-1","2.6.0+dfsg-1","2.6.1+dfsg-1","2.6.1+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111123.json"}},{"package":{"name":"fluidsynth","ecosystem":"Debian:13","purl":"pkg:deb/debian/fluidsynth?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.4+dfsg-1","2.4.4+dfsg-1+deb13u1","2.4.4+dfsg-1+deb13u2","2.4.4+dfsg-1+deb13u3","2.4.6+dfsg-1","2.4.7+dfsg-1","2.4.7+dfsg-2","2.4.8+dfsg-1","2.5.0+dfsg-1","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.2+dfsg-1","2.5.3+dfsg-1","2.5.4+dfsg-1","2.5.5+dfsg-1","2.5.5+dfsg-2","2.5.6+dfsg-1","2.5.7+dfsg-1","2.6.0+dfsg-1","2.6.1+dfsg-1","2.6.1+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111123.json"}},{"package":{"name":"fluidsynth","ecosystem":"Debian:14","purl":"pkg:deb/debian/fluidsynth?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.4+dfsg-1","2.4.6+dfsg-1","2.4.7+dfsg-1","2.4.7+dfsg-2","2.4.8+dfsg-1","2.5.0+dfsg-1","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.2+dfsg-1","2.5.3+dfsg-1","2.5.4+dfsg-1","2.5.5+dfsg-1","2.5.5+dfsg-2","2.5.6+dfsg-1","2.5.7+dfsg-1","2.6.0+dfsg-1","2.6.1+dfsg-1","2.6.1+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111123.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}