What is CVE-2021-1473?

CVE-2021-1473 is a medium-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2021-04-08.

How severe is CVE-2021-1473?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-1473 known to be exploited?

9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Cisco Small Business Rv Series Router Firmware

CVE-2021-1473

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 in…

Vulnerability class: Buffer Overflow

EPSS: 0.642 (99.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
psirt@cisco.com (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
psirt@cisco.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-1473?: CVE-2021-1473 is a medium-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2021-04-08.
How severe is CVE-2021-1473?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-1473 known to be exploited?: 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.