CVE-2026-120452
Medium
Description
libgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt heap memory via oversized thumbnail processing. Attackers can supply small allocation-table values and a thumbnail header byte so in-place byte-swapping exceeds the buffer by about 30 KB, leaking heap contents in preview images.
SeverityMedium
CVSS5.4
Exploit probability—
ProductLibgphoto2
PublishedNov 2, 2026
First seenNov 4, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gPhoto libgphoto2 | v ≤ 2.5.34 | — |
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