CyberSecBulletin
CVE-2025-63205NVD status: Modified

Vb220 Firmware: Exposure of Sensitive Information to an Unauthorized Actor

Published Updated By the CyberSecBulletin desk

CVE-2025-63205 is a high-severity exposure of sensitive information to an unauthorized actor vulnerability in Vb220 Firmware from Bridgetech, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Vb220 Firmware versions: 6.5.0-9. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.4% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Vb220 Firmware you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
BridgetechVb220 Firmware6.5.0-9Not stated
BridgetechVb120 Firmware6.5.0-9Not stated
BridgetechVb330 Firmware6.5.0-9Not stated
BridgetechVb440 Firmware6.5.0-9Not stated
BridgetechNomad Portable Firmware6.5.0-9Not stated

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CISA (ADP).

Official description

An issue was discovered in bridgetech probes VB220 IP Network Probe,VB120 Embedded IP + RF Probe, VB330 High-Capacity Probe, VB440 ST 2110 Production Analytics Probe, and NOMAD, firmware versions 6.5.0-9, allowing attackers to gain sensitive information such as administrator passwords via the /probe/core/setup/passwd endpoint. NOTE: the Supplier disagrees that 6.5.0-9 is affected, and instead reports that 5.6.0-3 and earlier are affected, and 5.6.0-4 (2020-09-21) and later are fixed.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

How developers prevent this class of flaw

  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: poc, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Technical write-ups (may include proof of concept)

Other references

Recent Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities

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