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CVE-2026-107244

Quick assessment

Affected
Versa VOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VOS（前身为 Versa FlexVNF）上的 Node.js Web 服务用于基于 URL 的零接触配置（ZTP），在配置完成后即不再需要。该服务的 端点在 中于会话认证中间件之前注册，只要接收到能够成功解密的令牌，就会创建一个已认证的会话。由于用于解密的密钥和初始化向量（IV）在所有 VOS 设备中均为硬编码且完全相同，拥有网络访问权限的未认证攻击者可以计算出有效的令牌，将其提交至 端点，从而无需提供任何凭据即可获得完全认证的会话。 Versa 针对 Hub、Branch 和 Controller 的安全加固

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I. Basic Information for CVE-2026-107244

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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. The /decryptTest endpoint of this service is registered in server.js before the session authentication middleware and creates an authenticated session whenever it receives a token that decrypts successfully. Because the key and initialization vector (IV) used for decryption are hardcoded and identical across all VOS appliances, an unauthenticated attacker with network access can compute a valid token, submit it to /decryptTest, and obtain a fully authenticated session without providing any credentials.  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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1390
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Versa VOS 21.1.1 ~ 21.2.3 -

II. Public POCs for CVE-2026-107244

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III. Intelligence Information for CVE-2026-107244

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Other References for CVE-2026-107244 (1)

Same Patch Batch · Versa · 2026-11-10 · 6 CVEs total

CVE-2026-107241 VOS Node.js 服务默认凭据漏洞
CVE-2026-107243 Versa VOS Node.js 服务硬编码密钥漏洞
CVE-2026-107245 CVE-2026-107245
CVE-2026-107240 Versa VOS 任意版本 Node.js 远程命令执行漏洞
CVE-2026-107242 VOS Node.js 会话劫持漏洞

IV. Related Vulnerabilities

Same product: VOS
Same vendor: Versa
Same weakness: CWE-1390