Vulnerability · CVE-2026-4499
A vulnerability was determined in D-Link DIR-820LW 2.03.
Published Mar 20, 2026 · catalog updated Jun 17, 2026 · dir-820lw firmware
Check if you run it
No confirmed exploitation is on record for CVE-2026-4499. EPSS is 4.85%. Act only if a listed version of dir-820lw firmware is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 4.85%
- Remediation
- Advisory link
- Affected products
- cpe dlink/dir-820lw firmware
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe dlink/dir-820lw firmware2.03
How to fix CVE-2026-4499
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-4499. EPSS is 4.85%. Act only if a listed version of dir-820lw firmware is installed.
Which versions are affected?
Compare what you have installed with dlink/dir-820lw firmware 2.03. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-77: Command Injection; CWE-78: OS Command Injection. EPSS 4.85%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 20, 2026 · NIST NVD
Detected
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.
Jun 17, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-4499
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-4499
30-day exploitation probability 4.9%
first.org - NIST NVDVulnerability recordCVE-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.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.