{"id":"CVE-2026-120452","published":"2026-11-02T15:17:28.553","lastModified":"2026-11-02T19:34:23.993","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.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","cwes":["CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005bcd_decompress.c#L127-L130","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/commit/30bf7ace6d47cfe1232ea73bde2aceb95aba4bfb","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/issues/1326","tags":[]},{"url":"https://hackmd.io/@haindpwn/libgphoto2-jl2005c-init-alloc-table-buffer-overflow","tags":[]},{"url":"https://www.vulncheck.com/advisories/libgphoto2-through-2.5.34-heap-out-of-bounds-read-write-via-jl2005c-thumbnail-conversion","tags":[]}],"exploitRefs":[{"url":"https://github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005bcd_decompress.c#L127-L130","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/commit/30bf7ace6d47cfe1232ea73bde2aceb95aba4bfb","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442","tags":[]},{"url":"https://github.com/gphoto/libgphoto2/issues/1326","tags":[]}],"hasPoc":true,"ai":null}