Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
- Sévérité
- Élevée7,5CVSS 3.1, Élevée
- EPSS
- 7 %
- Publiée
- 28 sept. 2017
- Mise à jour
- 17 juin 2026
Description
Le titre, la description et les consignes de l’éditeur sont cités depuis les enregistrements sources (en anglais).
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS 15.0 through 15.6 and Cisco IOS XE 3.5 through 16.5 could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to how an affected device processes certain IKEv2 packets. An attacker could exploit this vulnerability by sending specific IKEv2 packets to an affected device to be processed. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. This vulnerability affects Cisco devices that have the Internet Security Association and Key Management Protocol (ISAKMP) enabled. Although only IKEv2 packets can be used to trigger this vulnerability, devices that are running Cisco IOS Software or Cisco IOS XE Software are vulnerable when ISAKMP is enabled. A device does not need to be configured with any IKEv2-specific features to be vulnerable. Many features use IKEv2, including different types of VPNs such as the following: LAN-to-LAN VPN; Remote-access VPN, excluding SSL VPN; Dynamic Multipoint VPN (DMVPN); and FlexVPN. Cisco Bug IDs: CSCvc41277.
Faiblesse : CWE-399
Exploitée activement
Ajoutée au catalogue CISA KEV le 3 mars 2022
Date limite de remédiation fédérale : 24 mars 2022
Action requise : Apply updates per vendor instructions.
Prédiction d’exploitation
Probabilité d’exploitation de 7 % dans les 30 prochains jours (percentile 94 %).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produits concernés
Patcharo affiche cette vulnérabilité à titre d’information mais ne compare pas encore les versions de ce produit.
- n/a Cisco IOS and IOS XE · Cisco IOS and IOS XE
Références
Provenance
Chaque information de cette page provient des sources ci-dessous. Rien n’est rédigé par une IA.
- Cisco (CVE record)
- Cisco (CVE record) · 27 sept. 2026, 23:46 UTC · Analyseur patcharo-cve5/1.1.0
- CISA Known Exploited Vulnerabilities
- CISA Known Exploited Vulnerabilities · 27 sept. 2026, 23:42 UTC · Analyseur patcharo-kev/1.0.0
- NVD
- NVD · 27 sept. 2026, 23:44 UTC · Analyseur patcharo-nvd/1.0.0
- FIRST EPSS
- FIRST EPSS · 27 sept. 2026, 23:46 UTC · Analyseur patcharo-epss/1.0.0
Dernière vérification : 28 sept. 2026, 02:31 UTC