What is CVE-2019-19941?

CVE-2019-19941 is a medium-severity vulnerability in Swisscom Centro Grande, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-03-16.

How severe is CVE-2019-19941?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Swisscom Centro Grande

CVE-2019-19941

Missing hostname validation in Swisscom Centro Grande before 6.16.12 allows a remote attacker to inject its local IP address as a domain entry in the DNS service of the router via crafted hostnames in DHCP requests, causing XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.swisscom.ch/content/dam/swisscom/de/about/nachhaltigkeit/digitale-schweiz/s… (Exploit, Vendor Advisory)
www.swisscom.ch/en/residential/help/device/internet-router.html (Product)

Frequently asked questions

What is CVE-2019-19941?: CVE-2019-19941 is a medium-severity vulnerability in Swisscom Centro Grande, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-03-16.
How severe is CVE-2019-19941?: Medium severity. CVSS v3 base score is 5.4 out of 10.