rsync up to 3.4.1 File Transfer array index

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in rsync up to 3.4.1. This affects an unknown function of the component File Transfer. This manipulation causes array index. This vulnerability is handled as CVE-2025-10158. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in rsync up to 3.4.1. It has been declared as problematic. Affected by this vulnerability is an unknown code of the component File Transfer. The manipulation with an unknown input leads to a array index vulnerability. The CWE definition for the vulnerability is CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was released by Calum Hutton as 797e17fc4a6f15e3b1756538a9f812b63942686f. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-10158 since 09/09/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/02/2026).

The vulnerability scanner Nessus provides a plugin with the ID 275743 (Linux Distros Unpatched Vulnerability : CVE-2025-10158), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (275743) and CERT Bund (WID-SEC-2025-2637). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Rsync
  • IBM QRadar SIEM

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (rapid7): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 275743
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-10158

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/09/2025 CVE reserved
11/18/2025 +70 days Advisory disclosed
11/18/2025 +0 days VulDB entry created
06/02/2026 +195 days VulDB entry last update

Sourcesinfo

Advisory: 797e17fc4a6f15e3b1756538a9f812b63942686f
Researcher: Calum Hutton
Status: Confirmed

CVE: CVE-2025-10158 (🔒)
GCVE (CVE): GCVE-0-2025-10158
GCVE (VulDB): GCVE-100-332791
CERT Bund: WID-SEC-2025-2637 - Rsync: Schwachstelle ermöglicht nicht spezifizierten Angriff

Entryinfo

Created: 11/18/2025 16:12
Updated: 06/02/2026 01:07
Changes: 11/18/2025 16:12 (63), 11/19/2025 12:17 (2), 11/19/2025 12:42 (7), 01/04/2026 21:19 (3), 04/02/2026 20:47 (1), 06/02/2026 01:07 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!