CVE-2019-16027 — Improper Input Validation in Cisco IOS XR Software

CWE-20 — Improper Input Validation4 documents4 sources

Severity

6.5MEDIUMNVD

EPSS

1.1%

top 22.26%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Cisco IOS XR Software Cisco IOS XR

Timeline

PublishedJan 26

Latest updateMay 24

Description

A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP re…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5cisco/cisco_ios_xr_softwareunspecified — n/a

▶NVDcisco/ios_xr17 versions+16

🔴Vulnerability Details

GHSA

GHSA-69gf-2w85-7g9q: A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Softwar↗2022-05-24

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CVEList

Cisco IOS XR Software Intermediate System–to–Intermediate System Denial of Service Vulnerability↗2020-01-26

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📋Vendor Advisories

Cisco

Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability↗2020-01-22

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