{"id":"JLSEC-2026-567","details":"A vulnerability classified as problematic was found in OpenCV `wechat_qrcode` Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file `qrcode/decoder/decoded_bit_stream_parser.cpp`. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-228547.","modified":"2026-07-25T18:25:14.794229996Z","published":"2026-06-05T15:18:28.412Z","upstream":["CVE-2023-2617"],"database_specific":{"license":"CC-BY-4.0","sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-2617","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2617","database_specific":{"status":"Modified"},"id":"CVE-2023-2617","imported":"2026-07-17T22:09:19.410Z","modified":"2026-06-17T05:53:01.267Z","published":"2023-05-10T06:15:16.853Z"}]},"references":[{"type":"WEB","url":"https://gist.github.com/GZTimeWalker/3ca70a8af2f5830711e9cccc73fb5270"},{"type":"WEB","url":"https://github.com/opencv/opencv_contrib/pull/3480"},{"type":"WEB","url":"https://vuldb.com/?ctiid.228547"},{"type":"WEB","url":"https://vuldb.com/?id.228547"}],"affected":[{"package":{"name":"OpenCV_jll","ecosystem":"Julia","purl":"pkg:julia/OpenCV_jll?uuid=33b9d88c-85f9-5d73-bd91-4e2b95a9aa0b"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.10.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-567.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}