What is CVE-2021-1609?

CVE-2021-1609 is a critical-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-08-04.

How severe is CVE-2021-1609?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Cisco Small Business Rv Series Router Firmware

CVE-2021-1609

Multiple vulnerabilities in the web-based management interface of the Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an attacker to do the following: Execute arbitrary code Cause a denial of…

Vulnerability class: Buffer Overflow

EPSS: 0.008 (74.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cisco Small Business Rv Series Router Firmware — versions n/a

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

20210804 Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities (vendor-advisory, x_refsource_CISCO)

Frequently asked questions

What is CVE-2021-1609?: CVE-2021-1609 is a critical-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-08-04.
How severe is CVE-2021-1609?: Critical severity. CVSS v3 base score is 9.8 out of 10.