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.
Metrics
Affected Vendors & Products
References
History
Fri, 09 Oct 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Uwe Ohse
Uwe Ohse lrzsz |
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| Vendors & Products |
Uwe Ohse
Uwe Ohse lrzsz |
Wed, 07 Oct 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 07 Oct 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-120 | |
| References |
| |
| Metrics |
threat_severity
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threat_severity
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Tue, 06 Oct 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | lrzsz before 0.13.0 Heap Buffer Overflow via lrz procheader() Pathname | |
| First Time appeared |
Lrzsz Project
Lrzsz Project lrzsz |
|
| Weaknesses | CWE-122 | |
| CPEs | cpe:2.3:a:lrzsz_project:lrzsz:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Lrzsz Project
Lrzsz Project lrzsz |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-06T13:35:47.550Z
Updated: 2026-10-06T19:30:50.710Z
Reserved: 2026-10-05T22:00:10.842Z
Link: CVE-2026-105842
Updated: 2026-10-06T19:25:48.870Z
Status : Deferred
Published: 2026-10-06T14:17:41.620
Modified: 2026-10-06T20:17:16.720
Link: CVE-2026-105842