CVE-2026-37555An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec.
Updated under an hour ago ()
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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.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
libsndfile_project libsndfile libsndfile_project:libsndfile | 1.2.2 | NVD |
References
- https://gist.github.com/sgInnora/a5f5c19e4bf6f4fb74fab7b0ef2bfcc1exploit, third-party-advisory
- https://github.com/libsndfile/libsndfile/commit/9a829113c88a51e57c1e46473e90609e4b7df151patch
- https://github.com/libsndfile/libsndfile/issues/833issue-tracking
- https://access.redhat.com/errata/RHSA-2026:19559
- https://access.redhat.com/errata/RHSA-2026:19560
- https://access.redhat.com/errata/RHSA-2026:19610
- https://access.redhat.com/errata/RHSA-2026:23221
- https://access.redhat.com/errata/RHSA-2026:23222
- https://access.redhat.com/errata/RHSA-2026:23223
- https://access.redhat.com/errata/RHSA-2026:25092
- https://access.redhat.com/errata/RHSA-2026:25197
- https://access.redhat.com/errata/RHSA-2026:25198
- https://access.redhat.com/errata/RHSA-2026:25227
- https://access.redhat.com/errata/RHSA-2026:30078
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/security/cve/CVE-2026-37555
- https://bugzilla.redhat.com/show_bug.cgi?id=2463856
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37555.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.