RCE in Dlink Dir-810l
CVE-2021-45382
A Remote Command Execution (RCE) vulnerability exists in all series H/W revisions D-link DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L routers via the DDNS function in ncc2 binary file. Note: DIR-810L, DIR-820L, DIR-830L, DIR-826…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.978 (99.9th percentile) — read the EPSS interpretation.
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.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . 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: .
Required action: The impacted product is end-of-life and should be disconnected if still in use.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-45382?
- CVE-2021-45382 is a critical-severity vulnerability in Dlink Dir-810l, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-02-17.
- How severe is CVE-2021-45382?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-45382 known to be exploited?
- Yes. CVE-2021-45382 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-04), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.