THREATPORT/VULNERABILITY/CVE-2021-1610
CRITICAL SEVERITY

CVE-2021-1610

Small Business Rv Series Router Firmware vulnerability

CVSS
9.8
EPSS
9.1%
EPSS pct
95th
Exploited
No known
Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of service (DoS) condition Execute arbitrary commands For more information about these vulnerabilities, see the Details section of this advisory.
Affected vendor
Cisco
Affected product
Small Business Rv Series Router Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-121 — Stack-based Buffer Overflow
Published
2021-08-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 9.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2021-1610

  • Confirm whether Cisco Small Business Rv Series Router Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-1610.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-1610

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-1610 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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