CVEvulnerability

CVE-2021-1243

7.5 HIGH Published 2021-02-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-02-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-284

Description

A vulnerability in the Local Packet Transport Services (LPTS) programming of the SNMP with the management plane protection feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to allow connections despite the management plane protection that is configured to deny access to the SNMP server of an affected device. This vulnerability is due to incorrect LPTS programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by connecting to an affected device using SNMP. A successful exploit could allow the attacker to connect to the device on the configured SNMP ports. Valid credentials are required to execute any of the SNMP requests.

Affected configurations

• cisco ios xr (> 6.1.1 < 6.6.4) • cisco ios xr (>= 7.0.0 < 7.0.2) • cisco ios xr 6.7.1 • cisco ios xr 7.0.11 • cisco ios xr 7.1.0 • cisco ios xr 7.2.0

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References