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rsync EUVDEUVD-2026-58045

| CVE-2026-70459 MEDIUM
Use of Uninitialized Resource (CWE-908)
2026-08-13 VulnCheck
6.9
CVSS 4.0 · Vendor: VulnCheck
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Vendor (VulnCheck) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.3 MEDIUM

Unauthenticated network access with no complexity; scope unchanged and impact limited to low availability as only the child process crashes.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SUSE
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
Aug 13, 2026 - 16:02 vuln.today
Analysis Generated
Aug 13, 2026 - 16:02 vuln.today
CVE Published
Aug 13, 2026 - 14:43 cve.org
MEDIUM 6.9

DescriptionCVE.org

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.

AnalysisAI

Remote unauthenticated crash of the rsync daemon affects all versions from 3.0.0 through 3.4.x. The daemon child process dereferences the first file list entry as a directory structure pointer without verifying its type, so a dot entry not typed as a directory triggers a null or uninitialized pointer dereference (CWE-908) that terminates the connection. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Connect to rsync daemon TCP 873
Delivery
Send crafted file list
Exploit
First entry is dot without directory type
Execution
Daemon child dereferences unvalidated pointer
Impact
Child process crashes, connection terminated

Vulnerability AssessmentAI

Exploitation The rsync daemon must be running in daemon mode (started via `rsync --daemon` or a system service such as rsyncd.service) and reachable over the network on TCP 873. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) places this at the highest possible exploitability tier - unauthenticated, low complexity, no user interaction - making any internet-exposed rsync daemon trivially reachable. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated remote attacker connects to an exposed rsync daemon on TCP 873 and transmits a crafted file list in which the first entry is a dot ('.') without the directory type flag set. The daemon child process dereferences this entry as a directory structure pointer without type validation, immediately encountering a null or uninitialized pointer and crashing. …
Remediation Vendor-released patch: rsync 3.5.0, confirmed as a major security release by the upstream project at https://github.com/RsyncProject/rsync/releases/tag/v3.5.0 and addressed in the security advisory at https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4v4-qxw9-q72m. … Detailed patch versions, workarounds, and compensating controls in full report.

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected
SUSE Linux Enterprise Micro 5.3 Affected

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EUVD-2026-58045 vulnerability details – vuln.today

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