CVE-2022-20915 — Misinterpretation of Input in Cisco IOS XE Software

CWE-115 — Misinterpretation of InputCWE-436 — Interpretation Conflict4 documents4 sources
Severity
7.4HIGHNVD
EPSS
0.1%
top 71.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco IOS XE Software
Timeline
PublishedOct 10
Latest updateOct 11

Description

A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling of an IPv6 packet that is forwarded from an MPLS and ZBFW-enabled interface in a 6VPE deployment. An attacker could exploit this vulnerability by sending a crafted IPv6 packet sourced from a device on the …

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 2.8 | Impact: 4.0

Affected Packages1 packages

🔴Vulnerability Details

2
GHSA
GHSA-xx9r-h2q8-q5m3: A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthentic↗2022-10-11
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CVEList
Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability↗2022-10-10
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📋Vendor Advisories

1
Cisco
Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability↗2022-09-28
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CVE-2022-20915 — Misinterpretation of Input in Cisco | cvebase