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VulnerabilityPublished

CVE-2026-107243: Versa VOS · Use of Hard-coded Credentials

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 recommends disabling the Node.js web service after the initial provisioning of the VOS device. This action prevents exploitation of the vulnerability.

Description

CVE-2026-107243 is a vulnerability in Versa VOS where the Node.js web service uses a hardcoded secret to sign session cookies. This secret is identical across all VOS appliances, allowing an attacker with any valid session ID to forge session cookies accepted by any device in the deployment. The Node.js web service is intended only for initial Zero Touch Provisioning (ZTP) and should be disabled afterward to prevent exploitation.

References

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