CVE-2017-20286CWE-787

CVE-2017-20286

High · published October 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
9.5
In the wild
Unconfirmed
What it is

DevIL through 1.8.0 contains a heap-based buffer overflow in iGetPalette() in il_gif.cpp that allows attackers to write beyond a 768-byte palette buffer when loading GIF images. Attackers can supply a crafted two-frame GIF whose second frame uses disposal method 1 with a local colour table, writing up to 384 controlled bytes past the heap allocation and possibly executing code.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
8.5 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00202 · 9.5th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-10-14T19:16Z
References (5)
https://www.vulncheck.com/advisories/devil-through-1.8.0-heap-buffer-overflow-via-gif-igetpalette · [email protected]https://github.com/DentonW/DevIL/blob/a2d9193fed0c7f93519c0c4c28b3348e0cb5759b/DevIL/src-IL/src/il_gif.cpp#L189-L226 · [email protected]https://github.com/DentonW/DevIL/blob/a2d9193fed0c7f93519c0c4c28b3348e0cb5759b/DevIL/src-IL/src/il_gif.cpp#L314-L324 · [email protected]https://github.com/DentonW/DevIL/issues/67 · [email protected]https://hackmd.io/@haind-pwn/devil-gif-palette-reuse-heap-overflow · [email protected]
EPSS history
Timeline
  • 16 OCT 03:08Z
    EPSS moved — → 0%
    epss
  • 14 OCT 14:16Z
    DevIL through 1.8.0 Heap Buffer Overflow via GIF iGetPalette
    cvelistv5
  • 14 OCT 14:16Z
    DevIL through 1.8.0 Heap Buffer Overflow via GIF iGetPalette
    cvelistv5