Buffer overflow in Cisco Small Business Rv Series Router Firmware
CVE-2024-20522
A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to cause an unexpected reload of an affected device, resulting in a denial of service (DoS) condition. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device. This vulnerability is due to improper validation of user input that is in incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (37.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Cisco Small Business Rv Series Router Firmware — versions 4.0.2.08-tm, 4.2.3.08, 4.1.1.01
- Cisco Rv042
- Cisco Rv042_firmware — versions 1.0.1.17, 1.0.2.03, 1.1.0.09
- Cisco Rv042g
- Cisco Rv042g_firmware — versions 1.0.1.17, 1.0.2.03, 1.1.0.09
- Cisco Rv320
- Cisco Rv320_firmware — versions 1.0.1.17, 1.0.2.03, 1.1.0.09
- Cisco Rv325
- Cisco Rv325_firmware — versions 1.0.1.17, 1.0.2.03, 1.1.0.09
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-20522?
- CVE-2024-20522 is a medium-severity vulnerability in Cisco Small Business Rv Series Router Firmware, classified under Heap-based Buffer Overflow. CVSS score: 6.5/10. Published 2024-10-02.
- How severe is CVE-2024-20522?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-20522 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.