CVE-2023-20118: Cisco Small Business RV Series Routers Command Injection Vulnerability
Affects Cisco Small Business RV Series RoutersSource CISA KEV
Exploited in the wild · KEV due 24 Mar 2025 · 54% EPSS : apply the vendor's fix or mitigations to Cisco Small Business RV Series Routers now.
Data as of 10/24/2026, 22:15:59 UTC
- Exploitation
Actively exploited – in CISA KEV since 03/03/2025
- KEV deadline
- 03/24/2025 US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 54.1% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NWhat to do
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Check the firmware or software version for Cisco Small Business RV Series Routers in the device's admin interface against the vendor advisory.
Description
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.
Weaknesses
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection') (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #23OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.