Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2023-20187

Disclosure Date: September 27, 2023 •
CVE-2023-20187 CVSS v3 Base Score: 7.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.

This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.

Add Assessment

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Cisco IOS XE Software 3.7.1S
Cisco IOS XE Software 3.7.2S
Cisco IOS XE Software 3.7.3S
Cisco IOS XE Software 3.7.4S
Cisco IOS XE Software 3.7.5S
Cisco IOS XE Software 3.7.6S
Cisco IOS XE Software 3.7.7S
Cisco IOS XE Software 3.7.2tS
Cisco IOS XE Software 3.8.0S
Cisco IOS XE Software 3.8.1S
Cisco IOS XE Software 3.8.2S
Cisco IOS XE Software 3.9.1S
Cisco IOS XE Software 3.9.0S
Cisco IOS XE Software 3.9.2S
Cisco IOS XE Software 3.10.0S
Cisco IOS XE Software 3.10.1S
Cisco IOS XE Software 3.10.2S
Cisco IOS XE Software 3.10.3S
Cisco IOS XE Software 3.10.4S
Cisco IOS XE Software 3.10.5S
Cisco IOS XE Software 3.10.6S
Cisco IOS XE Software 3.10.7S
Cisco IOS XE Software 3.10.1xbS
Cisco IOS XE Software 3.10.8S
Cisco IOS XE Software 3.10.8aS
Cisco IOS XE Software 3.10.9S
Cisco IOS XE Software 3.10.10S
Cisco IOS XE Software 3.11.1S
Cisco IOS XE Software 3.11.2S
Cisco IOS XE Software 3.11.0S
Cisco IOS XE Software 3.11.3S
Cisco IOS XE Software 3.11.4S
Cisco IOS XE Software 3.12.0S
Cisco IOS XE Software 3.12.1S
Cisco IOS XE Software 3.12.2S
Cisco IOS XE Software 3.12.3S
Cisco IOS XE Software 3.12.4S
Cisco IOS XE Software 3.13.0S
Cisco IOS XE Software 3.13.1S
Cisco IOS XE Software 3.13.2S
Cisco IOS XE Software 3.13.3S
Cisco IOS XE Software 3.13.4S
Cisco IOS XE Software 3.13.5S
Cisco IOS XE Software 3.13.2aS
Cisco IOS XE Software 3.13.5aS
Cisco IOS XE Software 3.13.6S
Cisco IOS XE Software 3.13.7S
Cisco IOS XE Software 3.13.6aS
Cisco IOS XE Software 3.13.8S
Cisco IOS XE Software 3.13.9S
Cisco IOS XE Software 3.13.10S
Cisco IOS XE Software 3.14.0S
Cisco IOS XE Software 3.14.1S
Cisco IOS XE Software 3.14.2S
Cisco IOS XE Software 3.14.3S
Cisco IOS XE Software 3.14.4S
Cisco IOS XE Software 3.15.0S
Cisco IOS XE Software 3.15.1S
Cisco IOS XE Software 3.15.2S
Cisco IOS XE Software 3.15.3S
Cisco IOS XE Software 3.15.4S
Cisco IOS XE Software 3.16.0S
Cisco IOS XE Software 3.16.1aS
Cisco IOS XE Software 3.16.2S
Cisco IOS XE Software 3.16.3S
Cisco IOS XE Software 3.16.2bS
Cisco IOS XE Software 3.16.4aS
Cisco IOS XE Software 3.16.4bS
Cisco IOS XE Software 3.16.5S
Cisco IOS XE Software 3.16.6S
Cisco IOS XE Software 3.16.7S
Cisco IOS XE Software 3.16.6bS
Cisco IOS XE Software 3.16.7aS
Cisco IOS XE Software 3.16.7bS
Cisco IOS XE Software 3.16.8S
Cisco IOS XE Software 3.16.9S
Cisco IOS XE Software 3.16.10S
Cisco IOS XE Software 3.17.0S
Cisco IOS XE Software 3.17.1S
Cisco IOS XE Software 3.17.2S
Cisco IOS XE Software 3.17.1aS
Cisco IOS XE Software 3.17.3S
Cisco IOS XE Software 3.17.4S
Cisco IOS XE Software 16.2.1
Cisco IOS XE Software 16.2.2
Cisco IOS XE Software 16.3.1
Cisco IOS XE Software 16.3.2
Cisco IOS XE Software 16.3.3
Cisco IOS XE Software 16.3.1a
Cisco IOS XE Software 16.3.4
Cisco IOS XE Software 16.3.5
Cisco IOS XE Software 16.3.6
Cisco IOS XE Software 16.3.7
Cisco IOS XE Software 16.3.8
Cisco IOS XE Software 16.3.9
Cisco IOS XE Software 16.3.10
Cisco IOS XE Software 16.3.11
Cisco IOS XE Software 16.4.1
Cisco IOS XE Software 16.4.2
Cisco IOS XE Software 16.4.3
Cisco IOS XE Software 16.5.1
Cisco IOS XE Software 16.5.1b
Cisco IOS XE Software 16.5.2
Cisco IOS XE Software 16.5.3
Cisco IOS XE Software 16.6.1
Cisco IOS XE Software 16.6.2
Cisco IOS XE Software 16.6.3
Cisco IOS XE Software 16.6.4
Cisco IOS XE Software 16.6.5
Cisco IOS XE Software 16.6.6
Cisco IOS XE Software 16.6.7
Cisco IOS XE Software 16.6.8
Cisco IOS XE Software 16.6.9
Cisco IOS XE Software 16.6.10
Cisco IOS XE Software 16.7.1
Cisco IOS XE Software 16.7.2
Cisco IOS XE Software 16.7.3
Cisco IOS XE Software 16.8.1
Cisco IOS XE Software 16.8.1s
Cisco IOS XE Software 16.8.2
Cisco IOS XE Software 16.8.3
Cisco IOS XE Software 16.9.1
Cisco IOS XE Software 16.9.2
Cisco IOS XE Software 16.9.1s
Cisco IOS XE Software 16.9.3
Cisco IOS XE Software 16.9.4
Cisco IOS XE Software 16.9.5
Cisco IOS XE Software 16.9.6
Cisco IOS XE Software 16.9.7
Cisco IOS XE Software 16.9.8
Cisco IOS XE Software 16.10.1
Cisco IOS XE Software 16.10.1a
Cisco IOS XE Software 16.10.1s
Cisco IOS XE Software 16.10.1e
Cisco IOS XE Software 16.10.2
Cisco IOS XE Software 16.10.3
Cisco IOS XE Software 16.11.1
Cisco IOS XE Software 16.11.1a
Cisco IOS XE Software 16.11.2
Cisco IOS XE Software 16.11.1s
Cisco IOS XE Software 16.12.1
Cisco IOS XE Software 16.12.1s
Cisco IOS XE Software 16.12.1a
Cisco IOS XE Software 16.12.1c
Cisco IOS XE Software 16.12.2
Cisco IOS XE Software 16.12.3
Cisco IOS XE Software 16.12.8
Cisco IOS XE Software 16.12.2s
Cisco IOS XE Software 16.12.4
Cisco IOS XE Software 16.12.3s
Cisco IOS XE Software 16.12.5
Cisco IOS XE Software 16.12.6
Cisco IOS XE Software 16.12.7
Cisco IOS XE Software 16.12.10a
Cisco IOS XE Software 17.1.1
Cisco IOS XE Software 17.1.1s
Cisco IOS XE Software 17.1.1t
Cisco IOS XE Software 17.1.3
Cisco IOS XE Software 17.2.1
Cisco IOS XE Software 17.2.1r
Cisco IOS XE Software 17.2.1v
Cisco IOS XE Software 17.2.2
Cisco IOS XE Software 17.2.3
Cisco IOS XE Software 17.3.1
Cisco IOS XE Software 17.3.2
Cisco IOS XE Software 17.3.3
Cisco IOS XE Software 17.3.1a
Cisco IOS XE Software 17.3.4
Cisco IOS XE Software 17.3.5
Cisco IOS XE Software 17.3.4a
Cisco IOS XE Software 17.3.6
Cisco IOS XE Software 17.3.7
Cisco IOS XE Software 17.4.1
Cisco IOS XE Software 17.4.2
Cisco IOS XE Software 17.4.1a
Cisco IOS XE Software 17.4.1b
Cisco IOS XE Software 17.5.1
Cisco IOS XE Software 17.5.1a
Cisco IOS XE Software 17.5.1b
Cisco IOS XE Software 17.5.1c
Cisco IOS XE Software 17.6.1
Cisco IOS XE Software 17.6.2
Cisco IOS XE Software 17.6.1a
Cisco IOS XE Software 17.6.3
Cisco IOS XE Software 17.6.3a
Cisco IOS XE Software 17.6.4
Cisco IOS XE Software 17.6.5
Cisco IOS XE Software 17.6.5a
Cisco IOS XE Software 17.7.1
Cisco IOS XE Software 17.7.1a
Cisco IOS XE Software 17.7.2
Cisco IOS XE Software 17.10.1
Cisco IOS XE Software 17.10.1a
Cisco IOS XE Software 17.8.1
Cisco IOS XE Software 17.8.1a
Cisco IOS XE Software 17.9.1
Cisco IOS XE Software 17.9.2
Cisco IOS XE Software 17.9.1a
Cisco IOS XE Software 17.9.3
Cisco IOS XE Software 17.9.2a
Cisco IOS XE Software 17.9.3a
Cisco IOS XE Software 17.11.1
Cisco IOS XE Software 17.11.1a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • cisco

Products

  • ios xe 16.10.1,
  • ios xe 16.10.1a,
  • ios xe 16.10.1e,
  • ios xe 16.10.1s,
  • ios xe 16.10.2,
  • ios xe 16.10.3,
  • ios xe 16.11.1,
  • ios xe 16.11.1a,
  • ios xe 16.11.1s,
  • ios xe 16.11.2,
  • ios xe 16.12.1,
  • ios xe 16.12.1a,
  • ios xe 16.12.1c,
  • ios xe 16.12.1s,
  • ios xe 16.12.2,
  • ios xe 16.12.2s,
  • ios xe 16.12.3,
  • ios xe 16.12.3s,
  • ios xe 16.12.4,
  • ios xe 16.12.5,
  • ios xe 16.12.6,
  • ios xe 16.12.7,
  • ios xe 16.12.8,
  • ios xe 16.2.1,
  • ios xe 16.2.2,
  • ios xe 16.3.1,
  • ios xe 16.3.10,
  • ios xe 16.3.11,
  • ios xe 16.3.1a,
  • ios xe 16.3.2,
  • ios xe 16.3.3,
  • ios xe 16.3.4,
  • ios xe 16.3.5,
  • ios xe 16.3.6,
  • ios xe 16.3.7,
  • ios xe 16.3.8,
  • ios xe 16.3.9,
  • ios xe 16.4.1,
  • ios xe 16.4.2,
  • ios xe 16.4.3,
  • ios xe 16.5.1,
  • ios xe 16.5.1b,
  • ios xe 16.5.2,
  • ios xe 16.5.3,
  • ios xe 16.6.1,
  • ios xe 16.6.10,
  • ios xe 16.6.2,
  • ios xe 16.6.3,
  • ios xe 16.6.4,
  • ios xe 16.6.5,
  • ios xe 16.6.6,
  • ios xe 16.6.7,
  • ios xe 16.6.8,
  • ios xe 16.6.9,
  • ios xe 16.7.1,
  • ios xe 16.7.2,
  • ios xe 16.7.3,
  • ios xe 16.8.1,
  • ios xe 16.8.1s,
  • ios xe 16.8.2,
  • ios xe 16.8.3,
  • ios xe 16.9.1,
  • ios xe 16.9.1s,
  • ios xe 16.9.2,
  • ios xe 16.9.3,
  • ios xe 16.9.4,
  • ios xe 16.9.5,
  • ios xe 16.9.6,
  • ios xe 16.9.7,
  • ios xe 16.9.8,
  • ios xe 17.1.1,
  • ios xe 17.1.1s,
  • ios xe 17.1.1t,
  • ios xe 17.1.3,
  • ios xe 17.10.1,
  • ios xe 17.10.1a,
  • ios xe 17.11.1,
  • ios xe 17.11.1a,
  • ios xe 17.2.1,
  • ios xe 17.2.1r,
  • ios xe 17.2.1v,
  • ios xe 17.2.2,
  • ios xe 17.2.3,
  • ios xe 17.3.1,
  • ios xe 17.3.1a,
  • ios xe 17.3.2,
  • ios xe 17.3.3,
  • ios xe 17.3.4,
  • ios xe 17.3.4a,
  • ios xe 17.3.5,
  • ios xe 17.3.6,
  • ios xe 17.3.7,
  • ios xe 17.4.1,
  • ios xe 17.4.1a,
  • ios xe 17.4.1b,
  • ios xe 17.4.2,
  • ios xe 17.5.1,
  • ios xe 17.5.1a,
  • ios xe 17.5.1b,
  • ios xe 17.5.1c,
  • ios xe 17.6.1,
  • ios xe 17.6.1a,
  • ios xe 17.6.2,
  • ios xe 17.6.3,
  • ios xe 17.6.3a,
  • ios xe 17.6.4,
  • ios xe 17.6.5,
  • ios xe 17.7.1,
  • ios xe 17.7.1a,
  • ios xe 17.7.2,
  • ios xe 17.8.1,
  • ios xe 17.8.1a,
  • ios xe 17.9.1,
  • ios xe 17.9.1a,
  • ios xe 17.9.2,
  • ios xe 17.9.2a,
  • ios xe 17.9.3,
  • ios xe 17.9.3a,
  • ios xe 3.10.0s,
  • ios xe 3.10.10s,
  • ios xe 3.10.1s,
  • ios xe 3.10.1xbs,
  • ios xe 3.10.2s,
  • ios xe 3.10.3s,
  • ios xe 3.10.4s,
  • ios xe 3.10.5s,
  • ios xe 3.10.6s,
  • ios xe 3.10.7s,
  • ios xe 3.10.8as,
  • ios xe 3.10.8s,
  • ios xe 3.10.9s,
  • ios xe 3.11.0s,
  • ios xe 3.11.1s,
  • ios xe 3.11.2s,
  • ios xe 3.11.3s,
  • ios xe 3.11.4s,
  • ios xe 3.12.0s,
  • ios xe 3.12.1s,
  • ios xe 3.12.2s,
  • ios xe 3.12.3s,
  • ios xe 3.12.4s,
  • ios xe 3.13.0s,
  • ios xe 3.13.10s,
  • ios xe 3.13.1s,
  • ios xe 3.13.2as,
  • ios xe 3.13.2s,
  • ios xe 3.13.3s,
  • ios xe 3.13.4s,
  • ios xe 3.13.5as,
  • ios xe 3.13.5s,
  • ios xe 3.13.6as,
  • ios xe 3.13.6s,
  • ios xe 3.13.7s,
  • ios xe 3.13.8s,
  • ios xe 3.13.9s,
  • ios xe 3.14.0s,
  • ios xe 3.14.1s,
  • ios xe 3.14.2s,
  • ios xe 3.14.3s,
  • ios xe 3.14.4s,
  • ios xe 3.15.0s,
  • ios xe 3.15.1s,
  • ios xe 3.15.2s,
  • ios xe 3.15.3s,
  • ios xe 3.15.4s,
  • ios xe 3.16.0s,
  • ios xe 3.16.10s,
  • ios xe 3.16.1as,
  • ios xe 3.16.2bs,
  • ios xe 3.16.2s,
  • ios xe 3.16.3s,
  • ios xe 3.16.4as,
  • ios xe 3.16.4bs,
  • ios xe 3.16.5s,
  • ios xe 3.16.6bs,
  • ios xe 3.16.6s,
  • ios xe 3.16.7as,
  • ios xe 3.16.7bs,
  • ios xe 3.16.7s,
  • ios xe 3.16.8s,
  • ios xe 3.16.9s,
  • ios xe 3.17.0s,
  • ios xe 3.17.1as,
  • ios xe 3.17.1s,
  • ios xe 3.17.2s,
  • ios xe 3.17.3s,
  • ios xe 3.17.4s,
  • ios xe 3.7.1s,
  • ios xe 3.7.2s,
  • ios xe 3.7.2ts,
  • ios xe 3.7.3s,
  • ios xe 3.7.4s,
  • ios xe 3.7.5s,
  • ios xe 3.7.6s,
  • ios xe 3.7.7s,
  • ios xe 3.8.0s,
  • ios xe 3.8.1s,
  • ios xe 3.8.2s,
  • ios xe 3.9.0s,
  • ios xe 3.9.1s,
  • ios xe 3.9.2s

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis