CVE-2019-19823

Exp

A certain router administration interface (that includes Realtek APMIB 0.11f for Boa 0.94.14rc21) stores cleartext administrative passwords in flash memory and in a file. This affects TOTOLINK A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0; Rutek RTK 11N AP through 2019-12-12; Sapido GR297n through 2019-12-12; CIK TELECOM MESH ROUTER through 2019-12-12; KCTVJEJU Wireless AP through 2019-12-12; Fibergate FGN-R2 through 2019-12-12; Hi-Wifi MAX-C300N through 2019-12-12; HCN MAX-C300N through 2019-12-12; T-broad GN-866ac through 2019-12-12; Coship EMTA AP through 2019-12-12; and IO-Data WN-AC1167R through 2019-12-12.

Published: 2020-01-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-19823 is rated High Exploit Risk (73.8/100): CVSS High severity, with high exploitation likelihood (EPSS 28.66%, 97th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). 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-2019-19823

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

Exploit prediction scoring system (EPSS) score for CVE-2019-19823

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 2026-04-21 41.63% 28.66% -12.97%
2 2026-04-19 35.20% 41.63% +6.43%
3 2026-01-20 — 35.20% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-19823

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-19823

Affected software / configurations for CVE-2019-19823

Vendor Product Version Raw CPE
totolink a3002ru_firmware <= 2.0.0 cpe:2.3:o:totolink:a3002ru_firmware:*:*:*:*:*:*:*:*
totolink a702r_firmware <= 2.1.3 cpe:2.3:o:totolink:a702r_firmware:*:*:*:*:*:*:*:*
totolink n302r_firmware <= 3.4.0 cpe:2.3:o:totolink:n302r_firmware:*:*:*:*:*:*:*:*
totolink n300rt_firmware <= 3.4.0 cpe:2.3:o:totolink:n300rt_firmware:*:*:*:*:*:*:*:*
totolink n200re_firmware <= 4.0.0 cpe:2.3:o:totolink:n200re_firmware:*:*:*:*:*:*:*:*
totolink n150rt_firmware <= 3.4.0 cpe:2.3:o:totolink:n150rt_firmware:*:*:*:*:*:*:*:*
totolink n100re_firmware <= 3.4.0 cpe:2.3:o:totolink:n100re_firmware:*:*:*:*:*:*:*:*
realtek rtk_11n_ap_firmware <= 2019-12-12 cpe:2.3:o:realtek:rtk_11n_ap_firmware:*:*:*:*:*:*:*:*
sapido gr297n_firmware <= 2019-12-12 cpe:2.3:o:sapido:gr297n_firmware:*:*:*:*:*:*:*:*
ciktel mesh_router_firmware <= 2019-12-12 cpe:2.3:o:ciktel:mesh_router_firmware:*:*:*:*:*:*:*:*
kctvjeju wireless_ap_firmware <= 2019-12-12 cpe:2.3:o:kctvjeju:wireless_ap_firmware:*:*:*:*:*:*:*:*
fg-products fgn-r2_firmware <= 2019-12-12 cpe:2.3:o:fg-products:fgn-r2_firmware:*:*:*:*:*:*:*:*
hiwifi max-c300n_firmware <= 2019-12-12 cpe:2.3:o:hiwifi:max-c300n_firmware:*:*:*:*:*:*:*:*
tbroad gn-866ac_firmware <= 2019-12-12 cpe:2.3:o:tbroad:gn-866ac_firmware:*:*:*:*:*:*:*:*
coship emta_ap_firmwre <= 2019-12-12 cpe:2.3:o:coship:emta_ap_firmwre:*:*:*:*:*:*:*:*
iodata wn-ac1167r_firmwre <= 2019-12-12 cpe:2.3:o:iodata:wn-ac1167r_firmwre:*:*:*:*:*:*:*:*
hcn_max-c300n_project hcn_max-c300n_firmware <= 2019-12-12 cpe:2.3:o:hcn_max-c300n_project:hcn_max-c300n_firmware:*:*:*:*:*:*:*:*
totolink n301rt_firmware <= 2.1.6 cpe:2.3:o:totolink:n301rt_firmware:*:*:*:*:*:*:*:*

References for CVE-2019-19823

cvelogic Threat Intelligence