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VulnerabilityPublished

CVE-2026-107245: Versa VOS · Stack-based Buffer Overflow

Affects Versa VOSSource CVE Database V5

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Not known to be exploited : upgrade to 23.1.2 soon.

Data as of 10 Nov 2026, 00:50 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 23.1.2

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

Upgrade Versa VOS to 23.1.2.

Affected software

ProductAffectedFixed in
VersaVOSAffected
  • >=21.1.1 <=21.2.3
  • >=23.1.2 <23.1.2
  • =22.1.2
  • =22.1.3
  • =22.1.4
Fixed in
  • 23.1.2

AI-suggested

A fix is available in Versa VOS version 23.1.2. Users should upgrade affected VOS nodes to version 23.1.2 or later to remediate this vulnerability. Nodes not accessible from the Internet are not vulnerable. No additional mitigations are specified.

Description

A stack-based buffer overflow vulnerability exists in the IPsec implementation of Versa VOS (Versa FlexVNF). The vulnerability occurs during the IKE Authentication phase when a maliciously crafted IKE Auth packet with an oversized Remote ID causes the vsmd process to crash, resulting in a denial of service. VOS nodes configured with specific IPsec VPN profiles using WAN interfaces as endpoints are vulnerable, including Controllers, Hub Controllers, and SSE Gateways. Nodes not accessible from the Internet are not affected. A fix is available in version 23.1.2.

References

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