CVE-2020-26070 — Improper Resource Shutdown or Release in Cisco IOS XR

CWE-404 — Improper Resource Shutdown or Release4 documents4 sources
Severity
8.6HIGHNVD
EPSS
1.7%
top 17.64%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco IOS XRCisco IOS XR Software
Timeline
PublishedNov 12
Latest updateMay 24

Description

A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when an affected device processes network traffic in software switching mode (punted). An attacker could exploit this vulnerability by sending specific streams of Layer 2 or Layer 3 protoco…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages2 packages

▶NVDcisco/ios_xr7.1.0 — 7.1.2+1

🔴Vulnerability Details

2
GHSA
GHSA-wg72-p7jc-jqrx: A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow↗2022-05-24
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CVEList
Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers Slow Path Forwarding Denial of Service Vulnerability↗2020-11-12
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📋Vendor Advisories

1
Cisco
Cisco IOS XR Software Slow Path Forwarding Denial of Service Vulnerability↗2020-11-10
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CVE-2020-26070 — Improper Resource Shutdown or Release | cvebase