# CVE-2025-10158: Rsync: Out of bounds array access via negative index CVE-2025-10158 is fixed in 5 products on 1 platform, first by rsync 3.4.1+ds1-7, released November 18, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2025-10158 - Priority: Routine - CVSS: 5.4 (Moderate) - EPSS: 0.0035 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 18, 2025 - Weakness: Improper Validation of Array Index - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-10158 ## Description The rsync utility enables the users to copy and synchronize files locally or across a network. Synchronization with rsync is fast because rsync only sends the differences in files over the network instead of sending whole files. The rsync utility is also used as a mirroring tool. Security Fix(es): * rsync: Rsync: Out of bounds array access via negative index (CVE-2025-10158) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | rsync Debian 12.15 (bookworm) | 3.2.7-1+deb12u4 | [DEBIAN-CVE-2025-10158](https://patchblox.com/security/data/fix/linux/debian-cve-2025-10158.md) | Nov 18, 2025 | | Linux | rsync Debian 13.5 (trixie) | 3.4.1+ds1-5+deb13u1 | [DEBIAN-CVE-2025-10158](https://patchblox.com/security/data/fix/linux/debian-cve-2025-10158.md) | Nov 18, 2025 | | Linux | rsync Debian 14 | 3.4.1+ds1-7 | [DEBIAN-CVE-2025-10158](https://patchblox.com/security/data/fix/linux/debian-cve-2025-10158.md) | Nov 18, 2025 | | Linux | rsync RHEL 10 | 3.4.1-2.el10_0.2 | [RHSA-2026:20696](https://patchblox.com/security/data/fix/linux/rhsa-2026-20696.md) | Apr 15, 2026 | | Linux | rsync RHEL 8 | 0:3.1.3-24.el8_10 | [RHSA-2026:6436](https://patchblox.com/security/data/fix/linux/rhsa-2026-6436.md) | Apr 15, 2026 | | Linux | rsync RHEL 9 | 0:3.2.5-3.el9_7.2 | [RHSA-2026:6390](https://patchblox.com/security/data/fix/linux/rhsa-2026-6390.md) | Apr 15, 2026 | | Linux | rsync Ubuntu 18.04.6 LTS (bionic) | 3.1.2-2.1ubuntu1.6+esm3 | [rsync 3.1.2-2.1ubuntu1.6+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-rsync-3.1.2-2.1ubuntu1.6-esm3.md) | May 19, 2026 | | Linux | rsync Ubuntu 20.04 LTS (focal) | 3.1.3-8ubuntu0.9+esm1 | [rsync 3.1.3-8ubuntu0.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rsync-3.1.3-8ubuntu0.9-esm1.md) | May 19, 2026 | | Linux | rsync Ubuntu 22.04.1 LTS (jammy) | 3.2.7-0ubuntu0.22.04.6 | [rsync 3.2.7-0ubuntu0.22.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rsync-3.2.7-0ubuntu0.22.04.6.md) | May 27, 2026 | | Linux | rsync Ubuntu 24.04.5 LTS (noble) | 3.2.7-1ubuntu1.4 | [rsync 3.2.7-1ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-rsync-3.2.7-1ubuntu1.4.md) | May 27, 2026 | | Linux | rsync Ubuntu 25.10 (questing) | 3.4.1+ds1-5ubuntu1.2 | [rsync 3.4.1+ds1-5ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-rsync-3.4.1-ds1-5ubuntu1.2.md) | May 27, 2026 | | Linux | rsync Ubuntu 26.04.1 LTS (resolute) | 3.4.1+ds1-7 | [rsync 3.4.1+ds1-7](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-rsync-3.4.1-ds1-7.md) | Nov 18, 2025 | | Linux | rsync almalinux 8 | 3.1.3-24.el8_10 | [ALSA-2026:6436](https://patchblox.com/security/data/fix/linux/alsa-2026-6436.md) | Apr 2, 2026 | | Linux | rsync almalinux 9 | 3.2.5-3.el9_7.2 | [ALSA-2026:6390](https://patchblox.com/security/data/fix/linux/alsa-2026-6390.md) | Apr 1, 2026 | | Linux | rsync amzn 2023 | 3.4.0-1.amzn2023.0.3 | [ALAS2023-2025-1302](https://patchblox.com/security/data/fix/linux/alas2023-2025-1302.md) | Dec 8, 2025 | | Linux | rsync ol 10 | 0:3.4.1-2.el10_1.2 | [ELSA-2026-6825](https://patchblox.com/security/data/fix/linux/elsa-2026-6825.md) | Apr 7, 2026 | | Linux | rsync ol 8 | 0:3.1.3-24.el8_10 | [ELSA-2026-6436](https://patchblox.com/security/data/fix/linux/elsa-2026-6436.md) | Apr 2, 2026 | | Linux | rsync ol 9 | 0:3.2.5-3.el9_7.2 | [ELSA-2026-6390](https://patchblox.com/security/data/fix/linux/elsa-2026-6390.md) | Apr 1, 2026 | | Linux | rsync opensuse-leap 15.6 | 3.2.7-150600.3.14.1 | [SUSE-SU-2025:4511-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4511-1.md) | Dec 23, 2025 | | Linux | rsync rocky 10 | 0:3.4.1-2.el10_1.2 | [RLSA-2026:6825](https://patchblox.com/security/data/fix/linux/rlsa-2026-6825.md) | Apr 9, 2026 | | Linux | rsync rocky 8 | 0:3.1.3-24.el8_10 | [RLSA-2026:6436](https://patchblox.com/security/data/fix/linux/rlsa-2026-6436.md) | Apr 9, 2026 | | Linux | rsync rocky 9 | 0:3.2.5-3.el9_7.2 | [RLSA-2026:6390](https://patchblox.com/security/data/fix/linux/rlsa-2026-6390.md) | Apr 7, 2026 | | Linux | rsync sles 15.7 | 3.2.7-150600.3.14.1 | [SUSE-SU-2025:4511-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4511-1.md) | Dec 23, 2025 | | Linux | rsync sles 16.0 | 3.4.1-160000.4.1 | [SUSE-SU-2026:22015-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22015-1.md) | Jun 2, 2026 | | Linux | rsync-daemon RHEL 8 | 0:3.1.3-24.el8_10 | [RHSA-2026:6436](https://patchblox.com/security/data/fix/linux/rhsa-2026-6436.md) | Apr 15, 2026 | | Linux | rsync-daemon RHEL 9 | 0:3.2.5-3.el9_7.2 | [RHSA-2026:6390](https://patchblox.com/security/data/fix/linux/rhsa-2026-6390.md) | Apr 15, 2026 | | Linux | rsync-daemon almalinux 10 | 3.4.1-2.el10_1.2 | [ALSA-2026:6825](https://patchblox.com/security/data/fix/linux/alsa-2026-6825.md) | Apr 7, 2026 | | Linux | rsync-daemon almalinux 8 | 3.1.3-24.el8_10 | [ALSA-2026:6436](https://patchblox.com/security/data/fix/linux/alsa-2026-6436.md) | Apr 2, 2026 | | Linux | rsync-daemon almalinux 9 | 3.2.5-3.el9_7.2 | [ALSA-2026:6390](https://patchblox.com/security/data/fix/linux/alsa-2026-6390.md) | Apr 1, 2026 | | Linux | rsync-daemon amzn 2023 | 3.4.0-1.amzn2023.0.3 | [ALAS2023-2025-1302](https://patchblox.com/security/data/fix/linux/alas2023-2025-1302.md) | Dec 8, 2025 | | Linux | rsync-daemon ol 10 | 0:3.4.1-2.el10_1.2 | [ELSA-2026-6825](https://patchblox.com/security/data/fix/linux/elsa-2026-6825.md) | Apr 7, 2026 | | Linux | rsync-daemon ol 8 | 0:3.1.3-24.el8_10 | [ELSA-2026-6436](https://patchblox.com/security/data/fix/linux/elsa-2026-6436.md) | Apr 2, 2026 | | Linux | rsync-daemon ol 9 | 0:3.2.5-3.el9_7.2 | [ELSA-2026-6390](https://patchblox.com/security/data/fix/linux/elsa-2026-6390.md) | Apr 1, 2026 | | Linux | rsync-debuginfo amzn 2023 | 3.4.0-1.amzn2023.0.3 | [ALAS2023-2025-1302](https://patchblox.com/security/data/fix/linux/alas2023-2025-1302.md) | Dec 8, 2025 | | Linux | rsync-debugsource amzn 2023 | 3.4.0-1.amzn2023.0.3 | [ALAS2023-2025-1302](https://patchblox.com/security/data/fix/linux/alas2023-2025-1302.md) | Dec 8, 2025 | | Linux | rsync-rrsync RHEL 9 | 0:3.2.5-3.el9_7.2 | [RHSA-2026:6390](https://patchblox.com/security/data/fix/linux/rhsa-2026-6390.md) | Apr 15, 2026 | | Linux | rsync-rrsync almalinux 10 | 3.4.1-2.el10_1.2 | [ALSA-2026:6825](https://patchblox.com/security/data/fix/linux/alsa-2026-6825.md) | Apr 7, 2026 | | Linux | rsync-rrsync almalinux 9 | 3.2.5-3.el9_7.2 | [ALSA-2026:6390](https://patchblox.com/security/data/fix/linux/alsa-2026-6390.md) | Apr 1, 2026 | | Linux | rsync-rrsync ol 10 | 0:3.4.1-2.el10_1.2 | [ELSA-2026-6825](https://patchblox.com/security/data/fix/linux/elsa-2026-6825.md) | Apr 7, 2026 | | Linux | rsync-rrsync ol 9 | 0:3.2.5-3.el9_7.2 | [ELSA-2026-6390](https://patchblox.com/security/data/fix/linux/elsa-2026-6390.md) | Apr 1, 2026 | --- Data as of 2026-11-08T00:53:09Z UTC. 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