CVE-2019-1951
mediumPriorität · verfolgen · 24EPSS 0.015 · 73. PerzentilEURUUSEPSS · bewertet 2026-10-27
A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco SD-WAN Solutioncisco_csaf
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 (4)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-20190807-sd-wan-bypassCisco SD-WAN Solution Packet Filtering Bypass Vulnerability2019-08-07csaf · cisco_csafUS
A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypass ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypass"]
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (8)
Externe Belege — Patches, Meldungen, Analysen.
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn67202Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-1951cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypasscnnvd
- https://vigilance.fr/vulnerability/Cisco-SD-WAN-Solution-privilege-escalation-via-L3-L4-Traffic-Filter-Bypass-29981cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.2991.2/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.2991/cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypassenisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypassVendor Advisorynvd
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