Versa VOS up to 21.2.3 Node.js Web Service random values

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00+

Summaryinfo

A vulnerability has been found in Versa VOS up to 21.2.3 and classified as problematic. This vulnerability affects unknown code of the component Node.js Web Service. This manipulation causes random values. This vulnerability appears as CVE-2026-107242. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Versa VOS up to 21.2.3. Affected by this vulnerability is an unknown part of the component Node.js Web Service. The manipulation with an unknown input leads to a random values vulnerability. The CWE definition for the vulnerability is CWE-330. The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. As an impact it is known to affect confidentiality. The summary by CVE is:

The Node.js web service on VOS (previously Versa FlexVNF) is used for URL-based Zero Touch Provisioning (ZTP) of the VOS appliance and is not required after provisioning is complete. This service generates session identifiers using UUID version 1 (UUIDv1), which is derived from the system’s date and time and its MAC address. As a result, successive identifiers differ only slightly and can be predicted. An attacker who can predict a user’s session ID could hijack that user’s session.  Versa’s security hardening guide for Hubs, Branches, and Controllers recommends disabling the Node.js web service after the initial provisioning of the VOS device. This vulnerability is not exploitable on VOS devices where the Node.js web service has been disabled.

The advisory is shared at security-portal.versa-networks.com. This vulnerability is known as CVE-2026-107242 since 10/07/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

Upgrading to version 22.1.2 July-2-2026-Hotfix, 22.1.3 July-2-2026-Hotfix, 22.1.4 July-2-2026-Hotfix or 23.1.2 Aug-3-2026-Hotfix eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Random values
CWE: CWE-330 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: VOS 22.1.2 July-2-2026-Hotfix/22.1.3 July-2-2026-Hotfix/22.1.4 July-2-2026-Hotfix/23.1.2 Aug-3-2026-Hotfix

Timelineinfo

10/07/2026 CVE reserved
11/10/2026 +34 days Advisory disclosed
11/10/2026 +0 days VulDB entry created
11/10/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: security-portal.versa-networks.com
Status: Confirmed

CNA: hackerone
CVE: CVE-2026-107242 (🔒)

GCVE (CVE): GCVE-0-2026-107242
GCVE (VulDB): GCVE-100-433513

Entryinfo

Created: 11/10/2026 02:06
Changes: 11/10/2026 02:06 (54)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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