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CVE-2025-3222VulnerabilityPublished Updated

CVE-2025-3222: GE Vernova Smallworld · Improper Authentication

Affects GE Vernova SmallworldSource CVE Database V5

0

Not known to be exploited · CVSS 9.3 Critical.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
GE Vernova SmallworldAffected
  • =5.3.3
  • =5.3.4
  • <=5.3.3
Fixed in–

AI-suggested

1. Monitor GE Vernova communications closely for official patches and apply them immediately upon release. 2. Until patches are available, implement strict network segmentation to isolate Smallworld servers from general network access, limiting exposure to trusted management networks only. 3. Employ strong firewall rules and intrusion detection/prevention systems to monitor and block unauthorized access attempts targeting Smallworld services. 4. Enforce multi-factor authentication (MFA) on all management interfaces where possible, even if the vulnerability bypasses authentication, to add an additional layer of defense. 5. Conduct thorough access reviews and restrict user privileges to the minimum necessary to reduce potential attack surface. 6. Increase logging and monitoring around Smallworld systems to detect anomalous access patterns or unauthorized activities promptly. 7. Prepare incident response plans specific to Smallworld compromise scenarios, including backup and recovery procedures. 8. Engage with GE Vernova support for guidance and potential workarounds until patches are available. 9. Educate relevant IT and security teams about the vulnerability specifics and the importance of rapid mitigation.

Description

Improper Authentication vulnerability in GE Vernova Smallworld on Windows, Linux allows Authentication Abuse.This issue affects Smallworld: 5.3.3 and prior versions for Linux, and 5.3.4.and prior versions for Windows.

References

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