CVE-2026-115504: cfitsio 0 through 4.7.0

Affected technology

cfitsio · 0 through 4.7.0
HEASARC

Description’s affected range: through 4.7.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · Passive user interaction

What an attacker can do

Attackers can supply a crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling arbitrary code execution. Vendor/CNA’s CVSS 4.0 assessment (base score 8.5/10) rates confidentiality, integrity and availability impact as high.