CVE-2021-1472: cisco cisco small business rv series router firmware
Vulnerability summary
CVE-2021-1472 is a critical (CVSS 9.8) vulnerability in cisco cisco small business rv series router firmware. EPSS estimates a 72.03% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 08-04-2021PublishedVulnerability first disclosed.
- 08-11-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
72.03%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
+0.19 pp
From 71.83% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
Cisco Small Business RV Series Authentication Bypass and Command Injection
exploit/linux/http/cisco_rv_series_authbypass_and_rce
Maturity: weaponized
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected systems
Cisco10 products
- cisco small business rv series router firmwaren/a
- rv160_firmware< 1.0.01.03
- rv160w_firmware< 1.0.01.03
- rv260_firmware< 1.0.01.03
- rv260p_firmware< 1.0.01.03
1 vendor · 10 products
References
3 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-bypass-inject-RbhgvfdxVendor AdvisoryX Refsource CISCO
- packetstormsecurity.com/files/162238/Cisco-RV-Authentication-Bypass-Code-Execution.htmlX Refsource MISCExploitThird Party AdvisoryVDB Entry