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CVE-2019-15271: Cisco RV Series Routers Deserialization of Untrusted Data Vulnerability

criticalknown exploitedCVE-2019-15271
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Ciscoproduct: RV Series RoutersRemote code execution
What
A deserialization of untrusted data vulnerability could allow an attacker to execute code with root privileges.
Who is affected
Certain Cisco Small Business RV Series Routers are affected.
Urgency
Remediation is critical due to the potential for remote code execution and active exploitation.
Action
Apply the security update provided by Cisco.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-06-08
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-15271

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2019-15271coverage & exploitation statusNVD · CVE.org

Recent advisories for Cisco RV Series

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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