CVE-2023-20118
Confirmed PUBLISHEDA vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]
- CVE Published
- Apr 05, 2023
- Exploitation Reported
- Mar 03, 2025
- CVSS
- 6.5 Medium
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.0.1.17 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.0.2.03 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.1.0.09 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.1.1.19 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.1.1.06 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.2.1.13 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.2.1.14 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.3.1.12 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.3.2.02 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.3.1.10 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.4.2.15 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.4.2.17 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.4.2.19 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.4.2.20 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.4.2.22 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.5.1.05 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.5.1.11 |
Affected |
| Cisco |
Cisco Small Business RV Series Router Firmware
|
1.5.1.13 |
Affected |
CVE References
- cisco-sa-sbr042-multi-vuln-ej76Pke5 sec.cloudapps.cisco.com · CVE Record https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurity...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2025-03-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Exploitation Status
Exploited in the wild
Recorded 2025-03-03 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/173431 | Jun 02, 2025 |
Recent Mentions
TheHackerNews · May 23, 2025
Cybersecurity researchers have disclosed that a threat actor codenamed ViciousTrap has compromised nearly 5,300 unique network edge devices across 84 countries and turned them into a honeypot-like network. The threat actor has been observed exploiting a critical security flaw impacting Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers (CVE-2023-20118) to corral them into
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:25 UTC about 1 year ago09:25 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC over 1 year ago00:00 UTC · over 1 year ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
16:05 UTC over 3 years ago16:05 UTC · over 3 years ago
CVE published
Vulnerability disclosed publicly
-
18:47 UTC over 3 years ago18:47 UTC · over 3 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2023-20118
{
"cve_id": "CVE-2023-20118",
"title": "A vulnerability in the web-based management interface of Cisco Small Business...",
"affected_vendor": "Cisco",
"affected_product": "Cisco Small Business RV Series Router Firmware",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 6.5,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}