CVE-2026-88386CWE-122

CVE-2026-88386

Medium · published September 25, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.0
In the wild
Unconfirmed
What it is

libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00105 · 1.0th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-09-25T01:18Z
References (3)
https://github.com/libsndfile/libsndfile/issues/1150 · [email protected]https://github.com/mhlavink/libsndfileci/commit/474e4d328b1e6240b93ec6ed14efb7c6a44bee57 · [email protected]https://github.com/libsndfile/libsndfile/issues/1150 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 0%
    epss
  • 24 SEP 00:00Z
    libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks
    cvelistv5