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VulnerabilityPublished

CVE-2026-107240: Versa VOS · OS Command Injection

Affects Versa VOSSource CVE Database V5

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Not known to be exploited · CVSS 7.6 High.

Data as of 10 Nov 2026, 00:50 UTC

CVSS 3.0 base score
7.6High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (hackerone)CVSS 3.07.6
CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
VersaVOSAffected
  • 22.1.2 – 23.1.2
  • >=21.1.1 <=21.2.3
4 affected builds
Fixed in–

AI-suggested

Versa's security hardening guide recommends disabling the Node.js web service on VOS devices after initial provisioning. This action effectively mitigates the vulnerability by removing the attack surface. There is no indication of an official patch; therefore, disabling the service is the primary mitigation. Users should verify that the Node.js web service is disabled post-provisioning to prevent exploitation.

Description

CVE-2026-107240 is an OS command injection vulnerability in the Node.js web service of Versa VOS appliances used for Zero Touch Provisioning (ZTP). The vulnerability arises because the /authenticate endpoint improperly sanitizes user input, allowing injection of newline characters that lead to arbitrary command execution as the versa OS service user. Exploitation requires no credentials but does require a CSRF token obtainable from an unauthenticated page. The vulnerability is mitigated by disabling the Node.js web service after provisioning, as recommended by Versa's security hardening guide.

References

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