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CVE-2021-1472

87
FAUCET Score

CVE-2021-1472 describes critical vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers. These flaws allow a remote, unauthenticated attacker to execute arbitrary commands or bypass authentication to upload files, posing a severe risk to affected devices. With a CVSS score of 9.8 (Critical) and an EPSS score indicating high exploitability, the potential impact includes full compromise of the router. While not currently listed on the KEV catalog, public exploit modules exist for Metasploit and Nuclei, though community discussion and media coverage remain low.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.01.03CPE matchmatch criteria
cpe:2.3:o:cisco:rv160_firmware:*:*:*:*:*:*:*:*
< 1.0.01.03CPE matchmatch criteria
cpe:2.3:o:cisco:rv160w_firmware:*:*:*:*:*:*:*:*
< 1.0.01.03CPE matchmatch criteria
cpe:2.3:o:cisco:rv260_firmware:*:*:*:*:*:*:*:*
< 1.0.01.03CPE matchmatch criteria
cpe:2.3:o:cisco:rv260p_firmware:*:*:*:*:*:*:*:*
< 1.0.01.03CPE matchmatch criteria
cpe:2.3:o:cisco:rv260w_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
72.47%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Cisco Small Business RV Series Authentication Bypass and Command Injection · Apr 7, 2021
Nuclei: CVE-2021-1472 · May 22, 2022
This CVE's current EPSS score of 0.7247 is in the 98th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

packetstormsecurity.com / files/162238/Cisco-RV-Authentication-Bypass-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2021/Apr/39
Mailing ListThird Party Advisory
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-bypass-inject-Rbhgvfdx
Vendor Advisory