Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-34708

Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.

Published

2021-09-09T05:15:07.207

Last Modified

2024-11-21T06:11:00.860

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.0 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-347
  • Type: Primary
    CWE-347
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xr < 7.3.2 Yes
Hardware cisco 8101-32fh - No
Hardware cisco 8101-32h * No
Hardware cisco 8102-64h - No
Hardware cisco 8201 - No
Hardware cisco 8201-32fh - No
Hardware cisco 8202 - No
Hardware cisco 8800_12-slot - No
Hardware cisco 8800_18-slot - No
Hardware cisco 8800_4-slot - No
Hardware cisco 8800_8-slot - No
Operating System cisco ios_xr < 7.3.2 Yes
Operating System cisco ios_xr < 7.4.1 Yes
Hardware cisco n540-12z20g-sys-a - No
Hardware cisco n540-12z20g-sys-d - No
Hardware cisco n540-24z8q2c-m - No
Hardware cisco n540-24z8q2c-sys - No
Hardware cisco n540-28z4c-sys-a - No
Hardware cisco n540-28z4c-sys-d - No
Hardware cisco n540-acc-sys - No
Hardware cisco n540x-12z16g-sys-a - No
Hardware cisco n540x-12z16g-sys-d - No
Hardware cisco n540x-16z4g8q2c-a - No
Hardware cisco n540x-16z4g8q2c-d - No
Hardware cisco n540x-acc-sys - No
References