What is CVE-2020-3451?

CVE-2020-3451 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: 4.7/10. Published 2020-09-04.

How severe is CVE-2020-3451?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2020-3451 known to be exploited?

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

Buffer overflow in Cisco Small Business Rv Series Router Firmware

CVE-2020-3451

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.

Vulnerability class: Buffer Overflow

EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
psirt@cisco.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-3451?: CVE-2020-3451 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: 4.7/10. Published 2020-09-04.
How severe is CVE-2020-3451?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2020-3451 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.