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VulnerabilityPublished Updated

CVE-2025-26411: Wattsense Bridge · Unrestricted File Upload

Affects Wattsense BridgeSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Feb 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Wattsense Wattsense BridgeAffected
  • =0
Fixed in–

AI-suggested

European organizations should immediately verify the firmware version of all Wattsense Bridge devices and upgrade to BSP 6.1.0 or later to remediate this vulnerability. Access to the Plugin Manager web interface must be restricted using network segmentation, VPNs, or firewall rules to limit exposure to authorized personnel only. Implement strong authentication mechanisms, including multi-factor authentication (MFA), to reduce the risk of credential compromise. Regularly audit user accounts and permissions to ensure only necessary users have access to the device management interface. Monitor logs for unusual upload activities or unauthorized access attempts. Employ network intrusion detection systems (NIDS) to detect anomalous behavior indicative of exploitation attempts. Additionally, consider isolating building automation networks from corporate IT networks to contain potential breaches. Establish incident response plans specific to IoT and building management systems to quickly address any detected compromise.

Description

An authenticated attacker is able to use the Plugin Manager of the web interface of the Wattsense Bridge devices to upload malicious Python files to the device. This enables an attacker to gain remote root access to the device. An attacker needs a valid user account on the Wattsense web interface to be able to conduct this attack. This issue is fixed in recent firmware versions BSP >= 6.1.0.

References

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