CVE-2023-20025
criticalpriority · attend · 50EPSS 0.016 · 76 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthenticated, remote attacker to bypass authentication 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 bypass authentication and gain root access on the underlying operating system.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Small Business RV Series Router Firmwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- lnversed/CVE-2023-20025Cisco r042 researchPoC · poc_in_github
affected products (33)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-sbr042-multi-vuln-ej76Pke5Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers Vulnerabilities2023-01-11csaf · cisco_csafUS
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow a remote attacker to bypass authentication or execute arbitrary commands on the underlying operating system of an affected device. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Cisco has not released software updates to address the vulnerabilities described in this advisory. There are no workarounds that address these vulnerabilities.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2023-20025cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-20025/cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5cnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.0171cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5enisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5MitigationVendor Advisorynvd
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