CVE-2026-41445
KissFFT Integer Overflow Heap Buffer Overflow via kiss_fftndr_alloc()
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
KissFFT Integer Overflow Heap Buffer Overflow via kiss_fftndr_alloc()
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.
- Record
CVE-2026-41445- CVSS 4.0
- 8.7 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 - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190, CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-23905
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.
- Record
EUVD-2026-23905- CVSS 4.0
- 8.7 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xpr7-5899-f5vj
KissFFT before commit 8a8e66e contains an integer overflow vulnerability in the kiss_fftndr_alloc...
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.
- Record
GHSA-xpr7-5899-f5vj- CVSS 4.0
- 8.7 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-41445- CVSS 4.0
- 8.7 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122, CWE-190
- Updated
- 2026-11-02
OSVALPINE-CVE-2026-41445
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.
- Record
ALPINE-CVE-2026-41445- CVSS 4.0
- 8.7 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-03
OSV
KissFFT Integer Overflow Heap Buffer Overflow via kiss_fftndr_alloc()
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.
- Record
CVE-2026-41445- CVSS 4.0
- 8.7 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 - Weakness
- CWE-122, CWE-190
- Updated
- 2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2026-41445
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.
- Record
DEBIAN-CVE-2026-41445- CVSS 4.0
- 8.7 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-41445
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.
- Record
UBUNTU-CVE-2026-41445- CVSS 4.0
- 8.7 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 - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2026:10591-1 No score
kissfft-131.2.0-2.1 on GA media
These are all security issues fixed in the kissfft-131.2.0-2.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:10591-1- Updated
- 2026-11-02
OSVUSN-8745-1 No score
kissfft vulnerabilities
It was discovered that KissFFT incorrectly handled certain large Fourier transform sizes on 32-bit architectures. An attacker could possibly use this issue to cause KissFFT to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2025-34297)
It was discovered that KissFFT incorrectly handled certain multidimensional Fourier transform sizes. An attacker could possibly use this issue to cause KissFFT to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-41445)
- Record
USN-8745-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kissfftAlpine:v3.23 |
before 131.2.0_git20260422-r0 | 131.2.0_git20260422-r0 |
kissfftAlpine:v3.24 |
before 131.2.0_git20260422-r0 | 131.2.0_git20260422-r0 |
kissfftDebian:12 |
before 131.1.0-4.1~deb12u1, plus listed versions 131.1.0-3131.1.0-4 |
131.1.0-4.1~deb12u1 |
kissfftDebian:13 |
before 131.1.0-4.1~deb13u1, plus listed versions 131.1.0-3131.1.0-4131.1.0-4.1~deb12u1 |
131.1.0-4.1~deb13u1 |
kissfftDebian:14 |
before 131.1.0-4.1, plus listed versions 131.1.0-3131.1.0-4131.1.0-4.1~deb12u1131.1.0-4.1~deb13u1 |
131.1.0-4.1 |
kissfftUbuntu:Pro:22.04:LTS |
before 131.1.0-2ubuntu0.1~esm1, plus listed versions 131.1.0-1131.1.0-2 |
131.1.0-2ubuntu0.1~esm1 |
kissfftUbuntu:Pro:24.04:LTS |
before 131.1.0-3ubuntu0.1~esm1, plus listed versions 131.1.0-3131.1.0-3build1131.1.0-3build2 |
131.1.0-3ubuntu0.1~esm1 |
kissfftUbuntu:25.10 |
All versions, plus listed versions 131.1.0-3build2 |
None known |
kissfftUbuntu:Pro:26.04:LTS |
before 131.1.0-4ubuntu0.1~esm1, plus listed versions 131.1.0-3build2131.1.0-4 |
131.1.0-4ubuntu0.1~esm1 |
kissfftUbuntu:Pro:22.04:LTS From an advisory covering 2 CVEs |
before 131.1.0-2ubuntu0.1~esm1, plus listed versions 131.1.0-1131.1.0-2 |
131.1.0-2ubuntu0.1~esm1 |
kissfftUbuntu:Pro:24.04:LTS From an advisory covering 2 CVEs |
before 131.1.0-3ubuntu0.1~esm1, plus listed versions 131.1.0-3131.1.0-3build1131.1.0-3build2 |
131.1.0-3ubuntu0.1~esm1 |
kissfftUbuntu:Pro:26.04:LTS From an advisory covering 2 CVEs |
before 131.1.0-4ubuntu0.1~esm1, plus listed versions 131.1.0-3build2131.1.0-4 |
131.1.0-4ubuntu0.1~esm1 |
kissfftopenSUSE:Tumbleweed |
before 131.2.0-2.1 | 131.2.0-2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected, aliases, references | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41445 is a high vulnerability (CVSS 8.7) in Mborgerding Kissfft, published April 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in kissfft 131.2.0_git20260422-r0.
References
github.com/mborgerding/kissfft/commit/8a8e66e33d692bad1376fe7904d87d767730537f
vulncheck.com/advisories/kissfft-integer-overflow-heap-buffer-overflow-via-kiss-fftndr-alloc
nvd.nist.gov/vuln/detail/CVE-2026-41445
security.alpinelinux.org/vuln/CVE-2026-41445