CVE-2026-44102
Received Received - Intake

Firmware Update File Access in OCPP Backend

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: CERT VDE

Description
An unauthenticated remote attacker can trigger a firmware update download via the OCPP backend by supplying an invalid firmware file. This will cause the file to remain accessible for a short period before it is deleted due to improper locking during the cleanup process.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-30
Last Modified
2026-07-30
Generated
2026-07-30
AI Q&A
2026-07-30
EPSS Evaluated
N/A
NVD
CVE-2026-44102
EUVD
EUVD-2026-51037

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability allows an unauthenticated remote attacker to trigger a firmware update download by sending an invalid file to the OCPP backend. Due to improper locking during cleanup, the invalid file remains accessible briefly before deletion.

Impact Analysis

An attacker could exploit this to cause temporary file exposure or denial of service by disrupting firmware update processes. The impact is limited due to the short window of file accessibility.

Mitigation Strategies

Implement proper file locking mechanisms during firmware update cleanup processes to prevent unauthorized access to temporary files. Ensure firmware update endpoints validate file integrity and reject invalid files before processing.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-44102. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart