How severe is CVE-2022-20703?

CVE-2022-20703 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-20703 being actively exploited?

Yes. CVE-2022-20703 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-20703?

CVE-2022-20703 primarily affects Cisco Rv340 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-20703?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-20703 have an EU (EUVD) identifier?

Yes. CVE-2022-20703 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-25953. It is also flagged as exploited in the EUVD (since 2022-03-03).

When was CVE-2022-20703 published?

CVE-2022-20703 was published on 2022-02-10 and last updated on 2026-06-17.

CVE-2022-20703

CVE-2022-20703 is a critical-severity vulnerability in Cisco Rv340 Firmware with a CVSS 3.x base score of 10.0. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-03). The underlying weakness is classified as CWE-295.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.2
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-03)
EU (EUVD) id: EUVD-2022-25953
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-03)
Weakness: CWE-295
Affected product: Cisco Rv340 Firmware
Published: 2022-02-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-20703?: 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.
How severe is CVE-2022-20703?: CVE-2022-20703 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-20703 being actively exploited?: Yes. CVE-2022-20703 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-20703?: CVE-2022-20703 primarily affects Cisco Rv340 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-20703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-20703 have an EU (EUVD) identifier?: Yes. CVE-2022-20703 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-25953. It is also flagged as exploited in the EUVD (since 2022-03-03).
When was CVE-2022-20703 published?: CVE-2022-20703 was published on 2022-02-10 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv260p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv260w_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Rv340 Firmware

CVE-2025-32433 — Critical (CVSS 10.0): Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.3, OTP-26.2.5.11, and…
CVE-2022-20749 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2022-20712 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2022-20711 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2022-20710 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2022-20709 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…

All CVEs affecting Cisco Rv340 Firmware →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…
CVE-2025-67229 — Critical (CVSS 9.8): An improper certificate validation vulnerability exists in ToDesktop Builder v0.32.1 This vulnerability allows an…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →