How severe is CVE-2024-20393?

CVE-2024-20393 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-20393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20393?

CVE-2024-20393 primarily affects Cisco Rv340 Dual Wan Gigabit Vpn Router Firmware. In total, 80 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-20393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-20393 have an EU (EUVD) identifier?

Yes. CVE-2024-20393 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18108.

When was CVE-2024-20393 published?

CVE-2024-20393 was published on 2024-10-02 and last updated on 2026-06-17.

CVE-2024-20393

CVE-2024-20393 is a high-severity vulnerability in Cisco Rv340 Dual Wan Gigabit Vpn Router Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18108
Weakness: CWE-285
Affected product: Cisco Rv340 Dual Wan Gigabit Vpn Router Firmware
Published: 2024-10-02
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to elevate privileges on an affected device. This vulnerability exists because the web-based management interface discloses sensitive information. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow an attacker to elevate privileges from guest to admin.

Frequently asked questions

What is CVE-2024-20393?: A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to elevate privileges on an affected device. This vulnerability exists because the web-based management interface discloses sensitive information. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow an attacker to elevate privileges from guest to admin.
How severe is CVE-2024-20393?: CVE-2024-20393 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-20393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20393?: CVE-2024-20393 primarily affects Cisco Rv340 Dual Wan Gigabit Vpn Router Firmware. In total, 80 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-20393 have an EU (EUVD) identifier?: Yes. CVE-2024-20393 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18108.
When was CVE-2024-20393 published?: CVE-2024-20393 was published on 2024-10-02 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv34x-privesc-rce-qE33TCms

Affected products (80)

cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.00.29:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.00.33:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.02.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.15:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.19:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.21:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.22:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.24:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.26:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.27:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.28:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.29:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.00.29:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.00.33:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.01.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.01.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.01.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.01.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.02.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.15:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.19:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.21:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.22:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.24:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.26:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.27:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.28:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware:1.0.03.29:*:*:*:*:*:*:*

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