CVE-2026-115504

CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts attacker-controlled heap descriptor lengths for variable-length string columns. 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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/yure1432/98f15c7e8f48dc90ae65646f926aa176
https://github.com/HEASARC/cfitsio
https://github.com/HEASARC/cfitsio/commit/579792e0f85bff0c6733ad5ebdf54c3b5c188686
https://github.com/HEASARC/cfitsio/pull/184
https://www.vulncheck.com/advisories/cfitsio-through-4.7.0-out-of-bounds-write-via-ffgcls2-in-getcols-c

Configurations

No configuration.

History

22 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 20:17

Updated : 2026-10-29 04:18

NVD link : CVE-2026-115504

Mitre link : CVE-2026-115504

CVE.ORG link : CVE-2026-115504

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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