PT-2021-1957 · Cisco · Cisco Ios Xr

Published 2021-02-03 · Updated 2022-04-25 · CVE-2021-1288

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Cisco IOS XR Software (affected versions not specified)

Description: The issue is related to multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software, which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerabilities are associated with resource management errors in the enf broker function.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2021-00764

CVE-2021-1288

Affected Products

Cisco Ios Xr

References · 5

• https://osv.dev/vulnerability/CVE-2021-1288 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1288 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dos-WwDdghs2 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00764 · Security Note
• https://t.me/cibsecurity/23084 · Telegram Post