CVE-2026-105842
MEDIUM
NVD
CVSS Score
6.4
Severity
MEDIUM
Published
Oct 06, 2026
Vendor
unknown
Description
lrzsz before 0.13.0 contains a heap-based buffer overflow vulnerability in procheader() of the lrz receive utility when copying overlong sender-supplied filenames into Pathname. Malicious ZMODEM senders can supply filenames up to 8192 bytes, overflowing the buffer via sprintf() in pipe mode or strcpy() to corrupt heap memory and crash lrz.