CVE-2026-70456
rsync 3.0.1 < 3.5.0 Heap Out-of-Bounds Write via read_args()
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.
| CWE | CWE-787 |
| Vendor | rsyncproject |
| Product | rsync |
| Published | Aug 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
RsyncProject / rsync
3.0.1 ≤ 3.4.4
References
Credits
gregkh