MEDIUM 6.1 NVD
CVE-2026-105842
lrzsz before 0.13.0 contains a heap-based buffer overflow vulnerability in procheader() of the lrz receive utility when copying overlong sender-supplied filenam
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.
References
- https://ohse.de/uwe/software/lrzsz.html
- https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html
- https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-heap-buffer-overflow-via-lrz-proc
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-10-06 via NVD.
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