CVE-2017-6721

mediumPriorität · verfolgen · 22EPSS 0.022 · 82. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.20% (82nd) EPSS

CVSS 5 · medium

Is it mine?

3 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · cisco_csaf · nvd

EPSS · bewertet 2026-10-28

A vulnerability in the ingress processing of fragmented TCP packets by Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause the WAASNET process to restart unexpectedly, causing a denial of service (DoS) condition. More Information: CSCvc57428. Known Affected Releases: 6.3(1). Known Fixed Releases: 6.3(0.143) 6.2(3c)6 6.2(3.22).

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenCisco Wide Area Application Services (WAAS)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

5.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 1.4

v3.04.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

v3.05.8mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · Cisco PSIRT US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-20USprimär

betroffene Produkte (3)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco Wide Area Application Services (WAAS)alle Versionencisco_csafUS
n/a Cisco Wide Area Application Services≤ Cisco Wide Area Application Servicesenisa_euvdEU
cisco wide area application services= 6.3(1)nvdUScpe:2.3:a:cisco:wide_area_application_services:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-20170621-waasCisco Wide Area Application Services TCP Fragment Denial of Service Vulnerability2017-06-21csaf · cisco_csafUS
A vulnerability in the ingress processing of fragmented TCP packets by Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause the WAASNET process to restart unexpectedly, causing a denial of service (DoS) condition. The vulnerability is due to incomplete input validation of TCP packets when a packet chain is fragmented. An attacker could exploit this vulnerability by sending a crafted set of TCP fragments through an affected device. An exploit could allow the attacker to cause a DoS condition due to a process restarting unexpectedly. The WAAS could drop traffic during the brief time that the WAASNET process is restarting. There are no workarounds that address this vulnerability.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cisco_csaf nvd NVD CVE.org MITRE

veröffentlicht 2017-07-04geändert 2026-06-17

verwandt (25,202)

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+25197 weitere

Referenzen (8)

Externe Belege — Patches, Meldungen, Analysen.

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