What is CVE-2022-26258?

CVE-2022-26258 is a critical-severity vulnerability in Dlink Dir-820l, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-28.

How severe is CVE-2022-26258?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-26258 known to be exploited?

Yes. CVE-2022-26258 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-08), indicating it is being actively exploited. 7 public proof-of-concept repositories are indexed.

RCE in Dlink Dir-820l

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-03-28 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.916 (99.8th percentile), scored 2026-10-15.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.920 · newest: 0.916 · change: -0.003

Affected products

Dlink Dir-820l
Dlink Dir-820l Firmware — versions 1.05b03

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-09-08. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-09-29.

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
www.dlink.com/en/security-bulletin/ (Not Applicable, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
github.com/skyedai910/Vuln/tree/master/DIR-820L/command_execution_0 (Exploit, Third Party Advisory, Broken Link)
github.com/zhizhuoshuma/cve_info_data/blob/ccaed4b94ba762eb8a8e003bfa762a7754b8… (Exploit, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-26258?: CVE-2022-26258 is a critical-severity vulnerability in Dlink Dir-820l, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-28.
How severe is CVE-2022-26258?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-26258 known to be exploited?: Yes. CVE-2022-26258 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-09-08), indicating it is being actively exploited. 7 public proof-of-concept repositories are indexed.