CVEvulnerability

CVE-2022-20700

9.8 CRITICAL Known exploited Published 2022-02-10 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability — Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers

A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsigned software, or cause a denial of service (DoS).

Added to KEV: 2022-03-03
Remediation due: 2022-03-17
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2022-20700

Status: Analyzed
Published: 2022-02-10
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses: CWE-121, CWE-787

Description

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Affected configurations

• cisco rv340 firmware (<= 1.0.03.24) • cisco rv340w firmware (<= 1.0.03.24) • cisco rv345 firmware (<= 1.0.03.24) • cisco rv345p firmware (<= 1.0.03.24) • cisco rv160 firmware (<= 1.0.01.05) • cisco rv160w firmware (<= 1.0.01.05) • cisco rv260 firmware (<= 1.0.01.05) • cisco rv260p firmware (<= 1.0.01.05) • cisco rv260w firmware (<= 1.0.01.05)

Weakness · CWE (2)

CWE-121 Stack-based Buffer Overflow weakness
CWE-787 Out-of-bounds Write weakness

References