CVE-2026-105841
lrzsz before 0.13.0 contains an OS command injection vulnerability in the lrz receive utility's…
- Risk score
- 62/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.9%
- Published
- 6 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- lrzsz before 0.13.0 contains an OS command injection vulnerability in the lrz receive utility's pipe mode that allows remote senders to execute commands by supplying crafted filenames. When lrz runs under a suffixed name such as lrztar, procheader() in src/lrz.c passes the unescaped ZMODEM/YMODEM filename to popen(), …
- Affected
- See advisory
- Fix
- Upgrade the product to 0.13.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.5 high
- Remotely exploitable without logging in
References
Original description
lrzsz before 0.13.0 contains an OS command injection vulnerability in the lrz receive utility's pipe mode that allows remote senders to execute commands by supplying crafted filenames. 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.
Last activity 6 Oct 2026. Patch Forecast updates every hour.