CVE-2026-105842
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Uwe Ohse | lrzsz | 0 < 0.13.0 | affected |
Weaknesses
- CWE-122: Heap-based Buffer Overflow
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html
- https://ohse.de/uwe/software/lrzsz.html
- https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-heap-buffer-overflow-via-lrz-procheader-pathname
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.