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CVE-2023-20118 (GCVE-0-2023-20118)

Vulnerability from cvelistv5 – Published: 2023-04-05 16:05 – Updated: 2025-10-21 23:15
VLAI CISA Previdian
Summary
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"])}]]
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-03 20:12 UTC
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
Cisco Cisco Small Business RV Series Router Firmware Affected: 1.0.1.17
Affected: 1.0.2.03
Affected: 1.1.0.09
Affected: 1.1.1.19
Affected: 1.1.1.06
Affected: 1.2.1.13
Affected: 1.2.1.14
Affected: 1.3.1.12
Affected: 1.3.2.02
Affected: 1.3.1.10
Affected: 1.4.2.15
Affected: 1.4.2.17
Affected: 1.4.2.19
Affected: 1.4.2.20
Affected: 1.4.2.22
Affected: 1.5.1.05
Affected: 1.5.1.11
Affected: 1.5.1.13
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: aba4b997-7dab-4307-9987-69f8886a89d0

Vulnerability ID: CVE-2023-20118

Status: Confirmed

Status Updated: 2025-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-03-03
Asserted: 2025-03-03
Scope
Notes: KEV entry: Cisco Small Business RV Series Routers Command Injection Vulnerability | Affected: Cisco / Small Business RV Series Routers | 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. | 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. | Due date: 2025-03-24 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5 ; https://nvd.nist.gov/vuln/detail/CVE-2023-20118
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-77
Feed CISA Known Exploited Vulnerabilities Catalog
Product Small Business RV Series Routers
Due Date 2025-03-24
Date Added 2025-03-03
Vendorproject Cisco
Vulnerabilityname Cisco Small Business RV Series Routers Command Injection Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 777a5abe-f97b-4d8d-b236-6f06193939cc

Vulnerability ID: CVE-2023-20118

Status: Confirmed

Status Updated: 2025-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-03-03
Asserted: 2025-03-03
Scope
Notes: KEVIntel entry: A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could... | Affected: Cisco / Cisco Small Business RV Series Router Firmware | CVSS: 6.5 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could...
Vendor Cisco
Product Cisco Small Business RV Series Router Firmware
Added Date 2025-03-03T00:00:00.000Z
Cvss Score 6.5
Epss Score None
Cvss Severity MEDIUM
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:06 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device.\\r\\n\\r Cisco has not and will not release software updates that address this vulnerability.   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    "redhat_vex": {
      "current_release_date": "2026-03-27T11:50:53+00:00",
      "cve": "CVE-2023-20118",
      "id": "CVE-2023-20118",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2023-20118",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-20118.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5\", \"name\": \"cisco-sa-sbr042-multi-vuln-ej76Pke5\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T08:57:35.886Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-20118\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-03T20:12:24.673297Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2025-03-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-03-03T00:00:00.000Z\", \"value\": \"CVE-2023-20118 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-28T16:23:08.484Z\"}}], \"cna\": {\"source\": {\"defects\": [\"CSCwe41652\"], \"advisory\": \"cisco-sa-sbr042-multi-vuln-ej76Pke5\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Small Business RV Series Router Firmware\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0.1.17\"}, {\"status\": \"affected\", \"version\": \"1.0.2.03\"}, {\"status\": \"affected\", \"version\": \"1.1.0.09\"}, {\"status\": \"affected\", \"version\": \"1.1.1.19\"}, {\"status\": \"affected\", \"version\": \"1.1.1.06\"}, {\"status\": \"affected\", \"version\": \"1.2.1.13\"}, {\"status\": \"affected\", \"version\": \"1.2.1.14\"}, {\"status\": \"affected\", \"version\": \"1.3.1.12\"}, {\"status\": \"affected\", \"version\": \"1.3.2.02\"}, {\"status\": \"affected\", \"version\": \"1.3.1.10\"}, {\"status\": \"affected\", \"version\": \"1.4.2.15\"}, {\"status\": \"affected\", \"version\": \"1.4.2.17\"}, {\"status\": \"affected\", \"version\": \"1.4.2.19\"}, {\"status\": \"affected\", \"version\": \"1.4.2.20\"}, {\"status\": \"affected\", \"version\": \"1.4.2.22\"}, {\"status\": \"affected\", \"version\": \"1.5.1.05\"}, {\"status\": \"affected\", \"version\": \"1.5.1.11\"}, {\"status\": \"affected\", \"version\": \"1.5.1.13\"}]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for vulnerabilities CVE-2023-20025 and CVE-2023-20026 that are described in this advisory.\\r\\n\\r\\nIn March 2025, the Cisco PSIRT became aware of additional attempted exploitation of some of these vulnerabilities in the wild. Cisco continues to strongly recommend that customers upgrade their hardware to Meraki or Cisco 1000 Series Integrated Services Routers to remediate these vulnerabilities.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5\", \"name\": \"cisco-sa-sbr042-multi-vuln-ej76Pke5\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\\r\\n\\r 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.\\r\\n\\r 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.\\r\\n\\r  {{value}} [\\\"%7b%7bvalue%7d%7d\\\"])}]]\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-77\", \"description\": \"Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2025-03-12T16:21:05.953Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-20118\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:15:20.900Z\", \"dateReserved\": \"2022-10-27T18:47:50.345Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2023-04-05T16:05:41.067Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.