CVE-2026-70458
published 2026-08-13CVE-2026-70458: 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…
PriorityP346high8.2CVSS 3.1
AVNACLPRNUINSUCNILAH
EPSS
0.40%
32.8th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| rsyncproject | rsync | 3.0.0 – 3.4.4 | — |
| samba | rsync | — | — |
CVSS provenance
nvdv3.18.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
nvdv4.08.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/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
vendor_redhat8.2HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [epel-all]
bugzilla·2026-08-24·CVSS 8.2
CVE-2026-70458 [HIGH] CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [epel-all]
CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [fedora-all]
bugzilla·2026-08-24·CVSS 8.2
CVE-2026-70458 [HIGH] CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [fedora-all]
CVE-2026-70458 rsync-bpc: rsync: Memory corruption via crafted file entries [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries [fedora-all]
bugzilla·2026-08-24·CVSS 8.2
CVE-2026-70458 [HIGH] CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries [fedora-all]
CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries
bugzilla·2026-08-13·CVSS 8.2
CVE-2026-70458 [HIGH] CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries
CVE-2026-70458 rsync: rsync: Memory corruption via crafted file entries
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.
2026-08-13
Published