CVE-2026-37555_CVE-2026-37555

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Basic Information

ID CVE-2026-37555

Source mitre

Published Apr 29, 2026 at 00:00

Modified Apr 29, 2026 at 19:31

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-190

References

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    "published": "2026-04-29T00:00:00.000Z",
    "modified": "2026-04-29T19:31:39.810Z",
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    "title": "CVE-2026-37555",
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    "references": "https://github.com/libsndfile/libsndfile/issues/833\nhttps://github.com/libsndfile/libsndfile/commit/9a829113c88a51e57c1e46473e90609e4b7df151",
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