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VULNERABILITIES

CVE-2026-111125 Details

Description

CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the HCOMPRESS tile decoder that allows attackers to read past the compressed tile buffer via input_nnybble in fits_hdecompress.c. Attackers can supply a crafted FITS file with ZCMPTYPE HCOMPRESS_1 declaring oversized tile geometry to crash applications calling fits_read_pix or disclose limited heap memory.

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References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/HEASARC/cfitsio [email protected]Product
https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/fits_hdecompress.c#L2575-L2633 [email protected]Product
https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/imcompress.c#L6310-L6316 [email protected]Product
https://hackmd.io/@haind-pwn/cfitsio-zdither0-dither-seed-oob-read [email protected]ExploitMitigationThird Party Advisory
https://www.vulncheck.com/advisories/cfitsio-through-4.7.0-heap-out-of-bounds-read-via-hcompress-input-nnybble [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds Read[email protected]

Affected Products

ProductVersions
nasa cfitsio
<= 4.7.0

CPE

  • cpe:2.3:a:nasa:cfitsio:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-111125
NVD Published Date:
Oct 15, 2026
NVD Last Modified:
Oct 21, 2026
Source:
[email protected]
CVE-2026-111125 Details - Not Deferred