{"schemaVersion":3,"id":"CVE-2026-37555","aliases":["RHSA-2026:19559","RHSA-2026:19560","RHSA-2026:19610","RHSA-2026:23221","RHSA-2026:23222","RHSA-2026:23223","RHSA-2026:25092","RHSA-2026:25197","RHSA-2026:25198","RHSA-2026:25227","UBUNTU-CVE-2026-37555","DEBIAN-CVE-2026-37555"],"status":"published","duplicateOf":null,"title":null,"description":"An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec. The AIFF code path (line 241) was fixed with (sf_count_t) cast, but the WAV code path (line 235) and close path (line 167) were not. When samplesperblock (int) * blocks (int) exceeds INT_MAX, the 32-bit multiplication overflows before being assigned to sf.frames (sf_count_t/int64). With samplesperblock=50000 and blocks=50000, the product 2500000000 overflows to -1794967296. This causes incorrect frame count leading to heap buffer overflow or denial of service. Both values come from the WAV file header and are attacker-controlled. This issue was discovered after an incomplete fix for CVE-2022-33065.","dates":{"published":"2026-04-29T00:00:00.000Z","modified":"2026-07-15T02:48:46.534Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":8.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":10,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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