What’s Vulnerable › Vulnerabilities

CVE-2020-21733

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-14 · updated 2026-07-09
• Weakness: CWE-79

Description

Sagemcom F@ST3686 v1.0 HUN 3.97.0 has XSS via RgDiagnostics.asp, RgDdns.asp, RgFirewallEL.asp, RgVpnL2tpPptp.asp.

Affected products

• Sagemcom F@St 3686 Firmware: 1.0_hun_3.97.0

References

• https://github.com/Gr3gPr1est/BugReport/blob/master/CVE-2020-21733
• https://github.com/Gr3gPr1est/BugReport/blob/master/SAGEM_F%40ST3686_v1.0_HUN_3.97.0_XSS_Vuln..pdf
• https://github.com/Gr3gPr1est/BugReport/blob/master/CVE-2020-21733
• https://github.com/Gr3gPr1est/BugReport/blob/master/SAGEM_F%40ST3686_v1.0_HUN_3.97.0_XSS_Vuln..pdf

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