CVE-2021-34734 — MEDIUM (6.5)

Vulnerability Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for the Cisco Video Surveillance 7000 Series IP Cameras firmware could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of memory resources, referred to as a double free. An attacker could exploit this vulnerability by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Video Surveillance 7000 Ip Camera Firmware	2.12.4

Related Weaknesses (CWE)

CWE-415

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iPatchVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iPatchVendor Advisory

FAQ

What is CVE-2021-34734?

CVE-2021-34734 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for the Cisco Video Surveillance 7000 Series IP Cameras firmware could allow an unauthenticated, adjacent attacker to cause a...

How severe is CVE-2021-34734?

CVE-2021-34734 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34734?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Video Surveillance 7000 Ip Camera Firmware.