CVE-2026-70459

rsync 3.0.0 < 3.5.0 Daemon Crash via Malformed File List Entry

MEDIUM
5.3
CVSS Score
Published: August 13, 2026 at 02:43 PM UTC
Updated: October 24, 2026 at 04:10 PM UTC
2 products affected across 2 vendorsRsyncRsync

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry not typed as a directory. The daemon dereferences the first file list entry as a directory structure pointer without verifying the entry type, resulting in an invalid or uninitialized pointer dereference that terminates the client connection.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions3.0.0 ≤ v < 3.5.0
Affected range stops below 3.5.0, so it looks safe — our inference, not a vendor statement
3.0.0 ≤ v ≤ 3.4.43.0.0
Vendor states this is fixed in 3.5.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-908

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