Buffer overflow in Nifti-Imaging Nifti Clib
CVE-2026-111275
nifti_clib through 3.0.1 contains a stack-based out-of-bounds read and write vulnerability in nifti_convert_n2hdr2nim() because the NIfTI-2 dim[0] value is never range-checked. Attackers can supply a crafted 540-byte NIfTI-2 header read via nifti_image_read() to crash applications or corrupt stack memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/nifticlib-nifti2-dim0-oob (technical-description)
- github.com/NIFTI-Imaging/nifti_clib/issues/195 (issue-tracking)
- github.com/NIFTI-Imaging/nifti_clib/pull/197 (issue-tracking, patch)
- github.com/NIFTI-Imaging/nifti_clib/blob/96b9954fafcf3bd69a4ee2091b0d707ed20776… (technical-description)
- github.com/NIFTI-Imaging/nifti_clib (product)
- www.vulncheck.com/advisories/nifti-clib-through-3.0.1-stack-out-of-bounds-acces… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111275?
- CVE-2026-111275 is a medium-severity vulnerability in Nifti-Imaging Nifti Clib, classified under Out-of-bounds Write. CVSS score: 6.1/10. Published 2026-10-15.
- How severe is CVE-2026-111275?
- Medium severity. CVSS v3 base score is 6.1 out of 10.