CVE-2020-3358
Last modified
CVE-2020-3358 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A vulnerability in the Secure Sockets Layer (SSL) VPN feature for Cisco Small Business RV VPN Routers could allow an unauthenticated, remote attacker to cause the device to unexpectedly restart, causing a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. EPSS estimates a 1.35% chance of exploitation in the next 30 days.
Description
A vulnerability in the Secure Sockets Layer (SSL) VPN feature for Cisco Small Business RV VPN Routers could allow an unauthenticated, remote attacker to cause the device to unexpectedly restart, causing a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request over an SSL connection to the targeted device. A successful exploit could allow the attacker to cause a reload, resulting in a DoS condition.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Rv340 Dual Wan Gigabit Vpn Router Firmware | < 1.0.03.18 |
| Cisco | Rv340w Dual Wan Gigabit Wireless-Ac Vpn Router Firmware | < 1.0.03.18 |
| Cisco | Rv345 Dual Wan Gigabit Vpn Router Firmware | < 1.0.03.18 |
| Cisco | Rv345p Dual Wan Gigabit Poe Vpn Router Firmware | < 1.0.03.18 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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