Cisco RV Series Routers Deserialization of Untrusted Data Vulnerability

Added to KEV
2022-06-08
Federal due date
2022-06-22
Vendor
Cisco
Product
RV Series Routers
EPSS
90.5th percentile (score 0.056, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-15271

CISA short description

A deserialization of untrusted data vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an attacker to execute code with root privileges.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.