Buffer overflow in Cisco Video Surveillance 8000 Series Ip Cameras
CVE-2021-1521
A vulnerability in the Cisco Discovery Protocol implementation for Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause an affected IP camera to reload. This vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected IP camera. A successful exploit could allow the attacker to cause the affected IP camera to reload unexpectedly, resulting in a denial of service (DoS) condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Vulnerability class: Buffer Overflow
EPSS: 0.004 (33.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cisco Video Surveillance 8000 Series Ip Cameras — versions n/a
- Cisco Video_surveillance_8000p
- Cisco Video_surveillance_8000p_firmware
- Cisco Video_surveillance_8020
- Cisco Video_surveillance_8020_firmware
- Cisco Video_surveillance_8030
- Cisco Video_surveillance_8030_firmware
- Cisco Video_surveillance_8070
- Cisco Video_surveillance_8070_firmware
- Cisco Video_surveillance_8400
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1521?
- CVE-2021-1521 is a medium-severity vulnerability in Cisco Video Surveillance 8000 Series Ip Cameras, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2021-05-06.
- How severe is CVE-2021-1521?
- Medium severity. CVSS v3 base score is 6.5 out of 10.