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CVE-2020-7249: SMC D3G0804W 3.5.2.5-LAT_GA devices allow XSS via the SSID field on the WiFi Network Configuration page (after

34
Routine
MEDIUM 4.8MITIGATE

CVE-2020-7249 is a medium-severity flaw (CVSS 4.8) affecting d3g0804 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SMC D3G0804W 3.5.2.5-LAT_GA devices allow XSS via the SSID field on the WiFi Network Configuration page (after a successful login to the admin account).

Why this priority

  • Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score4.8 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededHigh
User interactionRequired
EPSS exploit chance0.6% (top 49%)
CISA exploited listNo
WeaknessCWE-79
Published2020-01-21
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: smc

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

smc d3g0804 firmware MITIGATE
Affected: 3.5.2.5-lat_ga
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.5.2.5-lat_ga
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7249?

d3g0804 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-7249 being exploited?

CVE-2020-7249 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7249 affect?

CVE-2020-7249 affects d3g0804 firmware. Severity is medium (CVSS 4.8). SMC D3G0804W 3.5.2.5-LAT_GA devices allow XSS via the SSID field on the WiFi Network Configuration page (after a successful login to the admin account).

How urgent is CVE-2020-7249?

Priority 34/100. Public exploit reference

Software pages

Wi-Fi vulnerabilities

References

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