libssh Configuration File ssh_config_parse_file/ssh_bind_config_parse_file denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in libssh and classified as problematic. The affected element is the function ssh_config_parse_file/ssh_bind_config_parse_file of the component Configuration File Handler. This manipulation causes denial of service. The identification of this vulnerability is CVE-2026-0965. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in libssh (the affected version unknown). Affected by this vulnerability is the function ssh_config_parse_file/ssh_bind_config_parse_file of the component Configuration File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A local attacker can exploit this by providing a malicious configuration file or when the system is misconfigured. This vulnerability could lead to a Denial of Service (DoS) by causing the system to try and access dangerous files, such as block devices or large system files, which can disrupt normal operations.

It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2026-0965. The exploitation appears to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 298598 (Linux Distros Unpatched Vulnerability : CVE-2026-0965), 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 (298598), EUVD (EUVD-2026-16328) and CERT Bund (WID-SEC-2026-0446). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source libssh
  • Meinberg LANTIME

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298598
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-0965

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/11/2026 Advisory disclosed
02/11/2026 +0 days VulDB entry created
05/19/2026 +97 days VulDB entry last update

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2026-0965 (🔒)
GCVE (CVE): GCVE-0-2026-0965
GCVE (VulDB): GCVE-100-345439
EUVD: 🔒
CERT Bund: WID-SEC-2026-0446 - libssh: Mehrere Schwachstellen ermöglichen Manipulation von Dateien und DoS

Entryinfo

Created: 02/11/2026 05:32
Updated: 05/19/2026 18:37
Changes: 02/11/2026 05:32 (49), 02/11/2026 18:52 (2), 02/18/2026 15:38 (7), 04/19/2026 16:52 (1), 05/19/2026 12:32 (11), 05/19/2026 18:37 (1)
Complete: 🔍
Cache ID: 216::103

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

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