high Known exploitedREV. 01

CVE-2023-20118Cisco Small Business routers — command injection to root

The web management interface of the affected Cisco routers (RV016, RV042, RV320, RV325) runs commands out of an authenticated request, arriving at root-level privileges on the device.

YOUR NEXT MOVE

Follow the mitigation in Cisco advisory cisco-sa-sbr042-multi-vuln-ej76Pke5; these routers are past support, so plan replacement rather than a fix.

Read the risk

THE VITAL STATS
CVSS score
7.2/ 10
CVSS v3.1
EPSS probability
54%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2023-04-13
Added to KEV
2025-03-03
Exploit published
Not recorded
Confidence
high
Kill chain
execution
MITRE ATT&CK
T1059
Severity
high

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attacker needsAn authenticated account on the router's web management interface.

Behind the card

3 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2023-20118 · CRDS 0.1 · Issued 2026-09-24