CVE-2025-20192
highPriorität · verfolgen · 0EPSS 0.005 · 40. PerzentilDEEUNLRUUSEPSS · bewertet 2026-10-27
A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability. This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behoben16.10.1cisco_csaf
Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
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Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (825)
Betroffene Produkte und Versionsbereiche.
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- NCSC-2025-0146Kwetsbaarheden verholpen in Cisco IOS XE SoftwareNL2025-05-08csaf · ncsc_nlNL
Cisco heeft kwetsbaarheden verholpen in Cisco IOS XE Software.
- WID-SEC-W-2025-0979Cisco IOS XE Software: Mehrere SchwachstellenDeutsch2025-05-07csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Cisco IOS XE Software ausnutzen, um Dateien zu manipulieren, erhöhte Rechte zu erlangen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen und vertrauliche Informationen preiszugeben.
- cisco-sa-iosxe-ikev1-dos-XHk3HzFCCisco IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability2025-05-07csaf · cisco_csafUS
A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability. This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the May 2025 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: May 2025 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75279"].
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Referenzen (4)
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- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFCcnnvd
- https://www.cisco.com/c/en/us/support/index.htmlPatchcnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFCenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ikev1-dos-XHk3HzFCVendor Advisorynvd
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