Auth bypass in Belkin Wemo Switch 28b

CVE-2019-17532

An issue was discovered on Belkin Wemo Switch 28B WW_2.00.11057.PVT-OWRT-SNS devices. They allow remote attackers to cause a denial of service (persistent rules-processing outage) via a crafted ruleDbBody element in a StoreRules request to the upnp/control/rules1 URI, because database corruption occurs.

Vulnerability class: Broken Authentication

EPSS: 0.016 (73.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-17532?
CVE-2019-17532 is a high-severity vulnerability in Belkin Wemo Switch 28b, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2019-10-12.
How severe is CVE-2019-17532?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-17532 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.