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CVE-2026-70458 Details
Description
rsync 3.0.0 before 3.5.0 contains an out-of-bounds write vulnerability that allows attackers to corrupt memory by triggering HLINK_BUMP processing on file entries with the FLAG_HLINKED flag set while the hard-link preservation option is inactive. Attackers can exploit the missing F_SUM field in the file_struct layout to access memory past the end of the allocated structure, corrupting adjacent heap or stack data.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 13, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/RsyncProject/rsync/releases/tag/v3.5.0 | [email protected] | Release Notes |
| https://github.com/RsyncProject/rsync/security/advisories/GHSA-gg3m-4m9m-268h | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/rsync-out-of-bounds-write-via-flag-hlinked-handling | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| samba rsync | >= 3.0.0, < 3.5.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 6, 2026 | Initial Analysis | [email protected] |
| Oct 24, 2026 | CVE Translated | [email protected] |
| Oct 23, 2026 | CVE Translated | [email protected] |
| Aug 13, 2026 | CVE Modified | CISA-ADP |
| Aug 13, 2026 | New CVE Received | [email protected] |