CVE-2019-1669

mediumPriorität · verfolgen · 34EPSS 0.012 · 69. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.25% (69th) EPSS

CVSS 5 · medium

Is it mine?

5 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-28

A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access control policies or cause a denial of service (DoS) condition. The vulnerability exists because the affected software improperly manages system memory resources when inspecting traffic. An attacker could exploit this vulnerability by generating specific traffic patterns for the software to inspect. A successful exploit could allow the attacker to exhaust system memory resources used for traffic inspection. Depending on the configuration, the FTD Software could fail open and cease to inspect traffic or fail closed and result in a DoS condition. This vulnerability may require manual intervention to restore the software.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

Behoben6.3.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Workaround6.3.0cisco_csaf
Disabling SSL hardware acceleration, which is enabled by default in FTD Software Release 6.3.0, mitigates this vulnerability when no SSL policy is applied. Configurations with SSL policies enabled are not vulnerable. Administrators can issue the system support ssl-hw-offload disable command in the CLI to disable SSL hardware acceleration. This command will reboot the device. ftd# system support ssl-hw-offload disable

cvss

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

8.6

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–8.6

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

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 4

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · ENISA EU

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · Cisco PSIRT US

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 4

v3.07.9highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-693USprimärCWE-693US

betroffene Produkte (5)

Betroffene Produkte und Versionsbereiche.

Cisco 6.3.0alle Versionencisco_csafUS
Cisco Cisco Firepower Threat Defense Software≤ n/aenisa_euvdEU
Cisco Systems Inc. Firepower Threat Defense≤ 6.3.0fstec_bduRU
cisco secure firewall threat defense= 6.3.0nvdUScpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*
cisco secure firewall threat defense= 6.4.0nvdUScpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-20190123-firepowertds-bypassCisco Firepower Threat Defense Software Packet Inspection and Enforcement Bypass Vulnerability2019-01-23csaf · cisco_csafUS
A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access control policies or cause a denial of service (DoS) condition. The vulnerability exists because the affected software improperly manages system memory resources when inspecting traffic. An attacker could exploit this vulnerability by generating specific traffic patterns for the software to inspect. A successful exploit could allow the attacker to exhaust system memory resources used for traffic inspection. Depending on the configuration, the FTD Software could fail open and cease to inspect traffic or fail closed and result in a DoS condition. This vulnerability may require manual intervention to restore the software. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

veröffentlicht 2019-01-24geändert 2026-08-11

verwandt (1,066)

Verwandte Einträge.

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+1061 weitere

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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