CVE-2026-105842CWE-122

CVE-2026-105842

Medium · published October 6, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
10.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
CVSS v4.0
6.1 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
EPSS
0.00206 · 10.1th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-06T18:17Z
References (3)
https://ohse.de/uwe/software/lrzsz.html · [email protected]https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html · [email protected]https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-heap-buffer-overflow-via-lrz-procheader-pathname · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 13:35Z
    lrzsz before 0.13.0 Heap Buffer Overflow via lrz procheader() Pathname
    cvelistv5