What is CVE-2026-53792?

CVE-2026-53792 is a medium-severity vulnerability in Rsyncproject Rsync, classified under Improper Validation of Array Index. CVSS score: 6.5/10. Published 2026-08-13.

How severe is CVE-2026-53792?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Rsyncproject Rsync

CVE-2026-53792

rsync before 3.5.0 contains an out-of-bounds read vulnerability in the sender-side block matching logic that allows a malicious receiver to trigger memory access before the start of an allocated buffer by sending a crafted checksum block w…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Rsyncproject Rsync — versions 0, 3.5.0

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index
CWE-787 — Out-of-bounds Write

References

disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-53792?: CVE-2026-53792 is a medium-severity vulnerability in Rsyncproject Rsync, classified under Improper Validation of Array Index. CVSS score: 6.5/10. Published 2026-08-13.
How severe is CVE-2026-53792?: Medium severity. CVSS v3 base score is 6.5 out of 10.