Vulnerability · Published Feb 4, 2021 · Assigned by cisco

CVE-2021-1128Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability

Medium 5.5

In plain English

A medium-severity security flaw in Cisco IOS XR Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.4%top 70.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the CLI parser of Cisco IOS XR Software could allow an authenticated, local attacker to view more information than their privileges allow. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain sensitive information within the configuration that otherwise might not have been accessible beyond the privileges of the invoking user.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco IOS XR Software	n/a

Weakness: CWE-201 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

20210203 Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability vendor-advisory, x_refsource_CISCO