EN

CVE-2022-20841

Critical
9.0
0.05.010.0
Year
2022
Published
Aug 10, 2022
Known Affected Devices
2
CVSS Score
9.0

What is CVE-2022-20841?

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

CVSS Vector Breakdown

CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
AV
Attack Vector
Network

Exploitable remotely over the network without requiring access to the local system.

AC
Attack Complexity
High

Exploit requires specific conditions, timing, or configuration to succeed.

PR
Privileges Required
None

No authentication required. Any anonymous user can exploit this vulnerability.

UI
User Interaction
None

No user interaction required. Exploit runs without any victim action.

S
Scope
Changed

Exploiting the vulnerability can affect other components beyond the vulnerable one.

C
Confidentiality Impact
High

Complete loss of confidentiality. All data on the component may be exposed.

I
Integrity Impact
High

Complete loss of integrity. Attacker can modify any file or data on the component.

A
Availability Impact
High

Complete denial of service. The component becomes fully unavailable.

Known Affected Devices

Cisco RV340 Dual WAN Gigabit Router Cisco RV160W Wireless-AC VPN Router Cisco Cisco RV130 Cisco Cisco RV160 Cisco Cisco RV160W Cisco Cisco RV260 Cisco Cisco RV260P Cisco Cisco RV260W Cisco Cisco RV320 Cisco Cisco RV340 Cisco Cisco RV340W Cisco Cisco RV345P Cisco Cisco Catalyst 4503-E Cisco Cisco Aironet 2802E

FAQ

How severe is CVE-2022-20841?

CVE-2022-20841 has a CVSS score of 9.0/10, rated as Critical. This is the highest severity level - immediate patching is strongly recommended.

What does the CVSS score mean for CVE-2022-20841?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2022-20841 scores 9.0/10 (Critical). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.

Which devices are affected by CVE-2022-20841?

The list of devices confirmed to be affected by CVE-2022-20841 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.

How do I fix or mitigate CVE-2022-20841?

Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.