CVE-2026-116724 FLTK - Integer Overflow

FLTK through 1.4.5 contains an integer overflow caused by undersized pixel buffer allocation in Fl_BMP_Image::load_bmp_(), letting attackers supply crafted BMP or ICO files to corrupt the application heap, exploit requires crafted file input.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Integer Overflow
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
26 October 2026
Updated
27 October 2026
Weakness
CWE-190

Vendor fix

Update to the latest version beyond 1.4.5.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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