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TI-2025-09325 Aliases CVE-2025-10158GHSA-3rvc-qcwh-fhqv

Rsync: Out of bounds array access via negative index

Priority LOW 20CWE-129Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 14 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The malicious rsync client requires at least read access to the remote rsync module in order to trigger the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00349 28th percentileScored 2026-11-07
Fix Partial Red Hat: 8 advisoriesRed Hat: 14 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
rsyncrsyncup to 3.4.1—No fix listedCNA
  • rsync Vendorrsync Affected up to 3.4.1 Fixed in — No fix listed CNA

Remediation

Red Hat 8 advisories

  • RHSA-2026:20696 Released 2026-05-26 · Red Hat rating Important
    rsync security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rsync-daemon-3.4.1-2.el10_0.2
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) rsync-3.4.1-2.el10_0.2
  • RHSA-2026:20603 Released 2026-05-26 · Red Hat rating Important
    rsync security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) rsync-daemon-3.2.5-3.el9_6.1
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) rsync-3.2.5-3.el9_6.1
  • RHSA-2026:20604 Released 2026-05-26 · Red Hat rating Important
    rsync security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) rsync-daemon-3.2.3-19.el9_4.3
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) rsync-3.2.3-19.el9_4.3
Show 5 more Red Hat advisories
  • RHSA-2026:20602 Released 2026-05-26 · Red Hat rating Important
    rsync security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) rsync-daemon-3.2.3-19.el9_2.3
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) rsync-3.2.3-19.el9_2.3
  • RHSA-2026:13812 Released 2026-05-05 · Red Hat rating Important
    updated RHEL-8 based Middleware Containers container images
    • Middleware Containers for OpenShift rhpam-7/rhpam-businesscentral-monitoring-rhel8, rhpam-7/rhpam-businesscentral-rhel8, rhpam-7/rhpam-controller-rhel8 +4
  • RHSA-2026:6825 Released 2026-04-07 · Red Hat rating Moderate
    rsync security update
    • Red Hat Enterprise Linux AppStream (v. 10) rsync-daemon-3.4.1-2.el10_1.2, rsync-rrsync-3.4.1-2.el10_1.2
    • Red Hat Enterprise Linux BaseOS (v. 10) rsync-3.4.1-2.el10_1.2
  • RHSA-2026:6436 Released 2026-04-02 · Red Hat rating Moderate
    rsync security update
    • Red Hat Enterprise Linux BaseOS (v. 8) rsync-3.1.3-24.el8_10, rsync-daemon-3.1.3-24.el8_10
  • RHSA-2026:6390 Released 2026-04-01 · Red Hat rating Moderate
    rsync security update
    • Red Hat Enterprise Linux AppStream (v. 9) rsync-daemon-3.2.5-3.el9_7.2, rsync-rrsync-3.2.5-3.el9_7.2
    • Red Hat Enterprise Linux BaseOS (v. 9) rsync-3.2.5-3.el9_7.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Middleware Containers for OpenShiftFixed RHSA-2026:13812
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:6825
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:6390
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:20602
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:20696
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:20604
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:20603
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:6825
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:6436
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:6390
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:20602
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:20696
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2026:20604
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:20603
Not affected: 7 products
  • Middleware Containers for OpenShift
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2)
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-10158
  2. 2026-10-03 Alias added: GHSA-3rvc-qcwh-fhqv

References

Patch 1

Other 1

  • TI-2007-05915 Unspecified vulnerability in rsync before 3.0.0pre6, when running a writable rsync… CVSS 2.0HIGH 10.0
  • TI-2007-05914 rsync before 3.0.0pre6, when running a writable rsync daemon that is not using chroot… CVSS 2.0HIGH 9.3
  • TI-2007-03959 Multiple off-by-one errors in the sender.c in rsync 2.6.9 might allow remote attackers to… CVSS 2.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences