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When lrz runs under a suffixed name such as lrztar, procheader() in src/lrz.c passes the unescaped ZMODEM/YMODEM filename to popen(), so shell metacharacters execute as the receiving user.","state":0,"publishedAt":"2026-10-06T13:35:46.9+00:00","modifiedAt":"2026-10-06T13:58:44.875+00:00","affected":[{"ecosystem":"Vendor product","name":"lrzsz","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Uwe Ohse\",\n                    \"product\": \"lrzsz\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"0.13.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.5,"severity":"HIGH"}],"references":["https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html","https://ohse.de/uwe/software/lrzsz.html","https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-os-command-injection-via-lrz-pipe-mode"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105841","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105841","identifiers":["CVE-2026-105841"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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