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 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.
Published:Oct 6, 2026
Last Modified:Oct 9, 2026
EPS:Oct 6, 2026
EPSS Score:0.00206
CVSS Score:6.4
Affected Products
Vendor
Product
Action
Vendor
Lrzsz Project
Product
Lrzsz
Lrzsz Project
Lrzsz
Vendor
Uwe Ohse
Product
Lrzsz
Uwe Ohse
Lrzsz
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
