How severe is CVE-2022-20699?

CVE-2022-20699 has a CVSS score of 10/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-20699?

Affected package information for CVE-2022-20699 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2022-20699?

No fixed version has been published for CVE-2022-20699 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2022-20699 actively exploited in the wild?

Yes. There are 8 known exploit references for CVE-2022-20699, including 7 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2022-20699?

CVE-2022-20699 has an EPSS (Exploit Prediction Scoring System) score of 89.4%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2022-20699 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2022-20699 (Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-03-17. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2022-20699?

CVE-2022-20699 is classified as CWE-121 (CWE-121), CWE-1284 (CWE-1284). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2022-20699?

CVE-2022-20699 affects cisco rv340 firmware; cisco rv340w firmware; cisco rv345 firmware; cisco rv345p firmware. Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2022-20699 published, and has it been updated?

CVE-2022-20699 was published on February 10, 2022 and was last updated on October 28, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-03-03 — agencies required to remediate by 2022-03-17

CVE-2022-20699

CRITICAL

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…

Published

Feb 10, 2022

Updated

Oct 28, 2025

Affected

0 pkgs

Patched

None yet

Exploits

8 known

EPSS Exploitation Probability

via FIRST.org ↗

89.4%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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 Products

4 products · 4 configurations

rv340 firmwarecisco

≤ 1.0.03.24

range

rv340w firmwarecisco

≤ 1.0.03.24

range

rv345 firmwarecisco

≤ 1.0.03.24

range

rv345p firmwarecisco

≤ 1.0.03.24

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.