RCE in D-Link Dir-820lw
CVE-2026-4499
A vulnerability was determined in D-Link DIR-820LW 2.03. Affected is the function ssdpcgi_main of the component SSDP. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.047 (91.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.047 · change: +0.012
Affected products
- D-Link Dir-820lw — versions 2.03
- Dlink Dir-820lw
- Dlink Dir-820lw Firmware — versions 2.03
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/yunleeeee/cve/issues/1 (issue-tracking, Exploit)
- github.com/user-attachments/files/25790888/OS.Command.Injection.in.D-Link.DIR-8… (Exploit, exploit)
- www.dlink.com/ (Product, product)
Frequently asked questions
- What is CVE-2026-4499?
- CVE-2026-4499 is a high-severity vulnerability in D-Link Dir-820lw, classified under Command Injection. CVSS score: 7.3/10. Published 2026-03-20.
- How severe is CVE-2026-4499?
- High severity. CVSS v3 base score is 7.3 out of 10.