KissFFT Integer Overflow Heap Buffer Overflow via kiss_fftndr_alloc()_CVE-2026-41445

8.7 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Description

KissFFT before commit 8a8e66e contains an integer overflow vulnerability in the kiss_fftndr_alloc() function in kiss_fftndr.c where the allocation size calculation dimOther*(dimReal+2)*sizeof(kiss_fft_scalar) overflows signed 32-bit integer arithmetic before being widened to size_t, causing malloc() to allocate an undersized buffer. Attackers can trigger heap buffer overflow by providing crafted dimensions that cause the multiplication to exceed INT_MAX, allowing writes beyond the allocated buffer region when kiss_fftndr() processes the data.

AI Analysis

Integer overflow vulnerability in kiss_fftndr_alloc() function, allowing heap buffer overflow attacks

Basic Information

ID CVE-2026-41445

Source VulnCheck

Published Apr 20, 2026 at 16:18

Modified Apr 20, 2026 at 17:57

Affected Product

Vendor mborgerding

Product kissfft

Affected Versions mborgerding kissfft 0

CWE Classification

CWE-190 CWE-122

AI Assessment

AI Score 8.7 / 10

AI Severity High

Vendor mborgerding

Product KissFFT

References

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    "published": "2026-04-20T16:18:50.371Z",
    "modified": "2026-04-20T17:57:10.156Z",
    "type": "cve",
    "title": "KissFFT Integer Overflow Heap Buffer Overflow via kiss_fftndr_alloc()",
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    "references": "https://github.com/mborgerding/kissfft/commit/8a8e66e33d692bad1376fe7904d87d767730537f\nhttps://www.vulncheck.com/advisories/kissfft-integer-overflow-heap-buffer-overflow-via-kiss-fftndr-alloc",
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