HIGH✓ PATCH🇵🇱 Wersja polska

CVE-2023-20187

CVSS 8.6v3.1pub. 2023-09-27upd. 2024-11-21

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.

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Cisco IOS XE

    OS
    Cisco
    16.2.116.2.216.3.116.3.1016.3.1116.3.1a16.3.216.3.316.3.416.3.516.3.616.3.716.3.816.3.916.4.1+ 85 więcej
🟢
PATCH AVAILABLE
Vendor update available. Deploy in standard maintenance cycle.
Tags
DoSVPN
CWE
References

Related vulnerabilities

CVE-2023-20198CRITICAL10.0⚠ KEVten sam produkt

Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in...

CVE-2018-0151CRITICAL9.8⚠ KEVten sam produkt

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software coul...

CVE-2017-3881CRITICAL9.8⚠ KEVten sam produkt

A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE S...

CVE-2025-20363CRITICAL9.0PL ✓ten sam produkt

RCE w web services Cisco ASA, FTD, IOS, IOS XE, IOS XR przez HTTP

CVE-2025-20188CRITICAL10.0PL ✓ten sam produkt

Cisco IOS XE WLC — nieuwierzytelniony upload plików i RCE przez hardcoded JWT