CVE-2021-1472 json
Cisco Small Business RV Series Routers Vulnerabilities
published 2021-04-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-6939
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 72.0%
- EPSS 72.0% chance of exploitation in 30 days, percentile 99.4%
- public exploits
- 1
- Metasploit, plus a Nuclei check
Summary
Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Patch / fix
- cisco rv160_firmware 1.0.01.03
- cisco rv160w_firmware 1.0.01.03
- cisco rv260_firmware 1.0.01.03
- cisco rv260p_firmware 1.0.01.03
- cisco rv260w_firmware 1.0.01.03
- cisco rv340_firmware 1.0.03.21
- cisco rv340w_firmware 1.0.03.21
- cisco rv345_firmware 1.0.03.21
- cisco rv345p_firmware 1.0.03.21
Timeline
- First public exploit (Metasploit exploit/linux/http/cisco_rv_series_authbypass_and_rce)
- Published
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
72.03% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/cisco_rv_series_authbypass_and_rce Cisco Small Business RV Series Authentication Bypass and Command Injection metasploit exploit, excellent rank, 2021-04-07
- Nuclei template Cisco Small Business RV Series - OS Command Injection nuclei detection template
- packetstormsecurity.com http://packetstormsecurity.com/files/162238/Cisco-RV-Authentication-Bypass-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Cisco Cisco Small Business RV Series Router Firmware
Classification
References
-
packetstormsecurity.com
/files/162238/Cisco-RV-Authentication-Bypass-Code-Execution.html
exploit, third-party-advisory, vdb-entry
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-bypass-inject-Rbhgvfdx
vendor-advisory
-
seclists.org
/fulldisclosure/2021/Apr/39
mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-1472
- NVD CVE-2021-1472
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