CVE-2019-19494

Exp

Broadcom based cable modems across multiple vendors are vulnerable to a buffer overflow, which allows a remote attacker to execute arbitrary code at the kernel level via JavaScript run in a victim's browser. Examples of affected products include Sagemcom F@st 3890 prior to 50.10.21_T4, Sagemcom F@st 3890 prior to 05.76.6.3f, Sagemcom F@st 3686 3.428.0, Sagemcom F@st 3686 4.83.0, NETGEAR CG3700EMR 2.01.05, NETGEAR CG3700EMR 2.01.03, NETGEAR C6250EMR 2.01.05, NETGEAR C6250EMR 2.01.03, Technicolor TC7230 STEB 01.25, COMPAL 7284E 5.510.5.11, and COMPAL 7486E 5.510.5.11.

Published: 2020-01-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2019-19494

EPSS CVSS CWE Exploit-DB Affected

Conclusion & alert: CVE-2019-19494 is rated High Exploit Risk (83/100): CVSS High severity, with high exploitation likelihood (EPSS 69.07%, 99th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-19494

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-19494

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-16	70.82%	69.07%	-1.75%
2	2025-11-21	43.97%	70.82%	+26.85%
3	2025-11-18	—	43.97%	—

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-19494

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]
9.3	2.0	HIGH	`AV:N/AC:M/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	8.6	10.0	[email protected]

Weakness enumeration for CVE-2019-19494

CWE-120 MITRE ↗

Affected software / configurations for CVE-2019-19494

Vendor	Product	Version	Raw CPE
sagemcom	f\@st_3890_firmware	< 50.10.21_t4	cpe:2.3:o:sagemcom:f\@st_3890_firmware::::::::
sagemcom	f\@st_3890_firmware	< 05.76.6.3f	cpe:2.3:o:sagemcom:f\@st_3890_firmware::::::::
sagemcom	f\@st_3686_firmware	3.428.0	cpe:2.3:o:sagemcom:f\@st_3686_firmware:3.428.0:::::::*
sagemcom	f\@st_3686_firmware	4.83.0	cpe:2.3:o:sagemcom:f\@st_3686_firmware:4.83.0:::::::*
netgear	cg3700emr_firmware	2.01.03	cpe:2.3:o:netgear:cg3700emr_firmware:2.01.03:::::::*
netgear	cg3700emr_firmware	2.01.05	cpe:2.3:o:netgear:cg3700emr_firmware:2.01.05:::::::*
netgear	c6250emr_firmware	2.01.03	cpe:2.3:o:netgear:c6250emr_firmware:2.01.03:::::::*
netgear	c6250emr_firmware	2.01.05	cpe:2.3:o:netgear:c6250emr_firmware:2.01.05:::::::*
technicolor	tc7230_steb_firmware	01.25	cpe:2.3:o:technicolor:tc7230_steb_firmware:01.25:::::::*
compal	7284e_firmware	5.510.5.11	cpe:2.3:o:compal:7284e_firmware:5.510.5.11:::::::*
compal	7486e_firmware	5.510.5.11	cpe:2.3:o:compal:7486e_firmware:5.510.5.11:::::::*

References for CVE-2019-19494

URL	Tags
https://cablehaunt.com	Exploit Technical Description Third Party Advisory
https://github.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdf	Technical Description Third Party Advisory
https://github.com/Lyrebirds/Fast8690-exploit	Exploit Third Party Advisory
https://www.broadcom.com	Product

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