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CVE-2023-20118: Cisco Small Business RV Series Routers Command Injection Vulnerability

criticalknown exploitedCVE-2023-20118
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.
Multiple Cisco Small Business RV Series Routers contains a command injection vulnerability in the web-based management interface. Successful exploitation could allow an authenticated, remote attacker to gain root-level privileges and access unauthorized data.

CSIRTS triage

What
A command injection vulnerability in the web-based management interface allows an authenticated attacker to gain root-level privileges.
Who is affected
Users of Cisco Small Business RV Series Routers with access to the management interface.
Urgency
Critical urgency for remediation as the vulnerability is actively exploited.
Action
Apply the latest firmware updates to mitigate the vulnerability.

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
2025-03-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-20118

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-2023-20118coverage & exploitation statusNVD · CVE.org

Recent advisories for Cisco Small Business

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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